Answers to the top questions on Bitcoin lending, collateral liquidation, custody insurance, ETF fees & more. Clear, expert-written FAQ (updated 2026).
Fiat balances held at a partner bank may carry FDIC/CDIC pass‑through insurance up to statutory limits, but crypto assets themselves are not FDIC‑insured. Look for crime or specie insurance that covers theft of cold‑stored Bitcoin.
Bitcoin is a decentralized digital currency secured by a global, peer‑to‑peer network. Instead of relying on a bank or government, it uses an open ledger (the blockchain) to verify every transaction and enforces a hard‑capped supply of 21 million coins. Anyone can send or receive bitcoin 24/7, anywhere in the world, without intermediaries.
→ Want the full story? See our Bitcoin 101 guide in the Learning Center for a deeper dive into mining, wallets, and security fundamentals.
Bitcoin-backed lending allows you to use your Bitcoin as collateral to secure a loan in traditional currency. You retain ownership of your Bitcoin while accessing liquidity.
The spread is the difference between the highest bid and lowest ask. Tight spreads mean you buy closer to the true market price; wide spreads quietly add cost even if headline fees look low. Compare the spread in dollar terms, especially on smaller regional exchanges.
Most regulated exchanges require at least a government ID, selfie, and proof of address. Higher trading tiers or institutional accounts may need source‑of‑funds documentation. Completing KYC unlocks higher withdrawal limits.
• Bank wires/ACH/SEPA – low fees, settle in 1‑3 days.
• Debit/credit card – instant but 2‑4 % processing fees and cash‑advance interest possible.
• Stablecoin transfer – nearly instant with network fees only, but requires prior crypto know‑how.
Bitcoin ETFs, or Exchange-Traded Funds, are investment instruments that mirror Bitcoin's price, enabling investors to participate without directly holding the cryptocurrency. These funds are listed on conventional stock exchanges, allowing access via regular brokerage accounts.
Bitcoin rewards cards settle purchases in U.S. dollars on the Visa/Mastercard rails just like a normal cash-back card. The difference is what happens to the rebate: instead of statement credits or points, the card automatically uses that rebate to buy bitcoin (or another crypto) at the market rate and drops it into an account the issuer controls for you. Your APRs, payment due dates and dispute rights stay the same; only the reward currency changes.
Bitcoin-backed cards extend you a line of credit to spend against your bitcoin held as collateral. The CL card by Ledger is a good example of this.
Look beyond maker/taker fees to:
Deposit fees (bank wire, card, ACH)
Withdrawal fees: both fiat and on‑chain BTC network fees
Inactivity or small‑balance charges on some platforms
Total cost = trading fee + spread impact + any funding/withdrawal fees.
A maker order adds liquidity by resting on the order book; a taker order removes liquidity by filling immediately. Exchanges reward makers with lower fees (or rebates) because they improve market depth, while taker fees are typically higher. Always check both rates: active traders can save a lot by placing maker‑limit orders.
Custody in a Bitcoin Context: Custody refers to the secure storage and management of Bitcoin (or its private keys) on behalf of an owner, ensuring safety and control over access.
Private Key Control: A custodian holds the private keys to Bitcoin wallets, enabling them to manage, transfer, or safeguard the assets. In contrast, non-custodial solutions allow users to retain control.
Security and Protection: Custodians implement robust security measures, including cold storage, multi-signature wallets, and insurance, to safeguard Bitcoin against hacks, theft, or loss.
Regulatory Compliance: Custodial services often comply with regulations (e.g., FinCEN MSB, SEC rules) to ensure adherence to AML/KYC requirements and proper asset segregation for user protection.
Institutional Use: Custodians play a crucial role for institutional investors, facilitating the integration of Bitcoin into portfolios by providing trusted, regulated storage solutions.
High‑liquidity venues (large order books, high 24‑hour volume) let you buy without moving the market, cut slippage on large orders, and make cashing out quicker during high‑volatility periods.
Choose platforms with strong security (cold‑storage reserves, SOC‑certified audits), clear regulation or licensing in your region, deep liquidity so orders fill at fair prices, and responsive customer support. A transparent proof‑of‑reserves report is a bonus.
The safest path is to withdraw to self‑custody (your own hardware wallet). For larger or institutional balances, consider multi‑institution custody, where several regulated entities each hold a key shard—no single party can move funds alone, lowering counter‑party risk.
Check withdrawal policies: some exchanges batch withdrawals once per day, others release funds instantly but set daily limits. Also confirm whether they cover miner fees or pass them through to you.
Bitcoin options are financial derivatives that give the holder the right, but not the obligation, to buy (call) or sell (put) Bitcoin at a predetermined price (strike price) on or before a specific date (expiration). They are primarily traded on platforms like Deribit and OKX.
Without proper inheritance planning, your Bitcoin could be permanently lost. Unlike traditional bank accounts, Bitcoin has no recovery mechanism — if no one knows your private keys or seed phrases, the funds become inaccessible forever. An estimated 3-4 million BTC (worth over $300 billion) is already considered lost, much of it due to inadequate estate planning.
mNAV (Market-cap-to-Net-Asset-Value) compares a company's total market capitalization to the dollar value of its Bitcoin holdings. An mNAV of 2.0x means the market values the company at twice its BTC treasury value — the premium reflects the market's view of management, leverage strategy, and future accumulation potential. MicroStrategy, for example, has traded at mNAV multiples well above 1.0x because investors pay up for Saylor's leveraged BTC acquisition approach. An mNAV below 1.0x can signal the stock is trading at a discount to its underlying Bitcoin.
Under the updated FASB fair-value accounting rules (ASU 2023-08, effective January 2025), companies now report Bitcoin at its current market price each quarter, with gains and losses flowing through the income statement. Previously, Bitcoin was treated as an indefinite-lived intangible asset — companies could only write it down on impairment but couldn't mark it back up. The new rules remove that asymmetry and make corporate Bitcoin holdings more transparent to investors.
A Bitcoin treasury company holds BTC as a balance-sheet reserve asset — it buys and holds Bitcoin as a store of value alongside its core business operations. A Bitcoin miner produces new BTC through proof-of-work mining hardware and earns block rewards. Some miners like Marathon Digital also hold significant BTC on their balance sheets, blurring the line. The key distinction is the source: treasury companies acquire BTC on the open market (or via convertible notes), while miners earn it through computational work.
MicroStrategy uses a combination of convertible senior notes, at-the-market (ATM) equity offerings, and operating cash flow to fund Bitcoin acquisitions. The convertible notes allow the company to borrow at low interest rates (often 0-0.75%) while giving bondholders the option to convert to equity. ATM offerings let MicroStrategy sell shares directly into the market at current prices. This leveraged approach amplifies both upside and downside.
Key risks include Bitcoin price volatility impacting reported earnings and book value, regulatory changes around digital asset holdings and taxation, custody and security risks, liquidity risk if the company needs to sell BTC during a downturn, and concentration risk from having a large percentage of assets in a single volatile asset. For companies using leverage to acquire Bitcoin, there's additional refinancing risk and the possibility of forced selling if debt covenants are breached during a severe BTC drawdown.
The United States leads by a wide margin with the majority of publicly traded Bitcoin treasury companies, including MicroStrategy, Tesla, Marathon Digital, and Coinbase. Canada and Japan follow with companies like Galaxy Digital and Nexon respectively. Hong Kong and the UK also have notable entries. The concentration in the US reflects both the depth of US capital markets and the more established regulatory framework for publicly traded companies holding digital assets.
Look at mNAV to see how much premium you're paying over the underlying BTC value. Compare the company's average cost basis per Bitcoin to the current spot price — this shows unrealized gains or losses. Check what percentage of the company's enterprise value is attributable to Bitcoin versus its operating business. Review the funding strategy (equity dilution vs. convertible debt vs. cash flow). Finally, consider the management team's track record and stated strategy for future accumulation.
MicroStrategy's August 2020 announcement that it was converting its entire cash reserve to Bitcoin was the catalyst. CEO Michael Saylor framed it as an escape from cash debasement during COVID-era money printing. Tesla followed in early 2021 with a $1.5 billion purchase. The narrative accelerated in 2023-2024 as spot Bitcoin ETFs launched and the FASB updated accounting rules to allow fair-value reporting. By 2025, over 100 public companies held Bitcoin on their balance sheets.
Bitcoin is legal in most countries including the United States, EU, UK, Japan, and Australia. Some countries restrict or ban its use. Regulations vary by jurisdiction—check your local laws before buying or using Bitcoin.
You can buy Bitcoin through cryptocurrency exchanges (like Coinbase, Kraken, or River), Bitcoin ATMs, or peer-to-peer platforms. Most exchanges require identity verification. You can buy as little as $1 worth—you don't need to purchase a whole Bitcoin.
Bitcoin derives value from its fixed supply (21 million cap), decentralization, network security, censorship resistance, and growing adoption. Like gold, scarcity drives value—but Bitcoin is also divisible, portable, verifiable, and programmable.
The Bitcoin network itself has never been hacked since launching in 2009. Risks come from how you store it: exchange hacks, lost private keys, or phishing scams. Using a hardware wallet and strong security practices makes Bitcoin very safe to hold.
Bitcoin is the original cryptocurrency with the longest track record, largest network, highest security (proof-of-work mining), and most decentralized governance. It has a fixed supply of 21 million coins and focuses solely on being sound money—unlike altcoins that often add complexity.
A Bitcoin wallet stores your private keys—the cryptographic codes that prove ownership of your Bitcoin. Options include hardware wallets (most secure for long-term storage), mobile wallets (convenient for spending), and exchange wallets (easiest but you don't control your keys).
The largest Bitcoin conferences in 2026 include Bitcoin Conference (Nashville), Bitcoin Amsterdam, Baltic Honeybadger (Riga), Adopting Bitcoin (El Salvador), and Bitcoin Alive (Sydney). Each attracts thousands of attendees from developers, investors, and builders.
Bitcoin conferences offer networking with industry leaders, early access to new products, educational workshops, and community building. They are especially valuable for professionals in Bitcoin companies, investors evaluating opportunities, and developers building on Bitcoin.
Ticket prices vary widely: community meetups are often free, mid-size conferences range $200-$500, and premium events like Bitcoin Conference can cost $1,000-$2,500+ for full access. Early bird pricing and student discounts are commonly available.
Expect keynote speeches, panel discussions, developer workshops, expo halls with Bitcoin companies, networking events, and often social gatherings. Most conferences cover topics spanning technology, regulation, investing, mining, and adoption.
Most Bitcoin conferences accept Bitcoin (including Lightning Network) for tickets and at vendor booths. Many nearby restaurants and businesses also accept BTC during major conference weeks.
You can spend Bitcoin directly at merchants who accept it (via on-chain or Lightning Network), through Bitcoin debit cards that convert BTC to fiat at point of sale, or using payment apps like Strike or Cash App. Lightning payments are instant and nearly free.
A growing number of businesses accept Bitcoin including online retailers, restaurants, travel companies, real estate firms, car dealerships, and professional services. Major brands like Microsoft, AT&T, and Newegg accept BTC. Local businesses increasingly accept Lightning payments.
This depends on your financial goals. Many Bitcoiners follow a spend and replace strategy—spending Bitcoin where accepted to support the circular economy, then immediately buying back the same amount. This supports adoption while maintaining your savings position.
The Lightning Network is Bitcoin's second-layer payment protocol enabling instant, low-cost transactions. Businesses prefer it because payments settle in seconds (vs 10+ minutes on-chain), fees are fractions of a cent, and it handles high transaction volumes—making it practical for retail.
Use directories like BTCMap.org for local Bitcoin-accepting businesses, check this page for online merchants, or look for Bitcoin/Lightning payment signs at local shops. Bitcoin meetup groups often maintain local merchant lists for their communities.
The 21Rates Bitcoin Podcast covers Bitcoin lending markets, custody solutions, ETF flows, corporate treasury adoption, regulatory developments, and interviews with industry leaders. Episodes focus on Bitcoin-only financial infrastructure.
Most lenders require a loan-to-value ratio of 50-80%, providing a buffer for price fluctuations. If the value drops significantly, you may need to add more collateral or partially repay the loan.
Bitcoin ETFs are important because they provide a regulated and familiar method for investors, particularly institutional ones, to invest in Bitcoin. This can enhance market credibility and draw in more capital, which may help stabilize the market.
Some issuers hold rewards with regulated custodians or in cold-storage wallets; others rely on exchange partners. Ask about custody partner, insurance, and proof-of-reserves.
If you don’t control the private keys, you don’t ultimately control the bitcoin. Self-custody keeps you in charge; custodial solutions require trust in the provider.
The phrase "Not your keys, not your coins" gained prominence throughout Bitcoin's history as seemingly secure and regulated exchanges/custodians/wallets such at Mt. Gox, Celsius, and FTX all failed in their fiduciary duty to protect customer funds.
Bitcoin’s open, predictable monetary policy and decade‑long security record make it fundamentally different from other cryptocurrency. We believe institutional investment in the sector will continue to be concentrated in Bitcoin ETFs and Bitcoin Treasury Companies rather than the long tail of altcoins. By concentrating on a single protocol, we can dig deeper into technical details, regulatory nuances, and security standards—giving you clearer, apples‑to‑apples comparisons.
A call option gives you the right to buy Bitcoin at the strike price, profiting when BTC rises above that level. A put option gives you the right to sell Bitcoin at the strike price, profiting when BTC falls below it. Traders use calls for bullish bets and puts for bearish bets or hedging.
A dead man's switch is an automated mechanism that transfers your Bitcoin to designated beneficiaries if you fail to check in within a predetermined period. Services like Casa and Unchained offer this feature, which typically works by requiring periodic key rotations or confirmations. If you miss the check-in window, the system initiates the transfer process to your heirs.
New episodes are released weekly, combining long-form video interviews with audio-only deep dives. Episodes are available on YouTube, Spotify, Apple Podcasts, and directly on 21rates.com/podcast.
Each provider is reviewed independently in‑house. We pull the latest terms, licenses, fees, and security disclosures directly from the source (regulatory filings, official docs, or API feeds) and score them against a transparent checklist. Users are invited to leave honest, unbiased reviews to deepen the perspective. Please email info@21rates.com if you spot anything missing or out of date.
You hold your own keys in a hardware wallet, mobile wallet, or other tool—only you can move the coins.
Approval times vary by lender but typically range from a few hours to 24 hours. Some platforms offer instant approval for smaller loan amounts.
Look at reward rate, fees, withdrawal options, custody terms, sign-up bonus, and any regional restrictions. Be sure to do your due diligence on the custodian where your Bitcoin will be stored by checking out our Custodians page linked at the top of the page.
It's thought that Bitcoin ETFs might boost Bitcoin's price by expanding demand, since more investors can access it easily. Nonetheless, the exact effect remains uncertain and is debated, with some arguing it could also cause increased price volatility.
The minimum varies by platform. On Deribit, you can start with as little as 0.001 BTC for some contracts. CME Bitcoin options require larger capital as each contract represents 5 BTC. For beginners, starting small on Deribit or OKX is recommended while learning the mechanics.
While not strictly required, multisig (multi-signature) wallets are strongly recommended for inheritance planning. Multisig setups like 2-of-3 or 3-of-5 distribute key control across multiple parties, eliminating single points of failure. This means no single person — including your executor — can steal the funds, while still allowing recovery if one key is lost.
Yes. All full-length episodes are recorded as video interviews and published on the 21Rates YouTube channel. Video versions include charts, data overlays, and screen shares that complement the audio discussion.
Yes, lenders typically charge origination fees, maintenance fees, and potentially early repayment fees. These vary by lender and should be factored into your decision.
Bitcoin ETFs usually rely on regulated custodians and secure digital vaults for storing Bitcoin, which helps mitigate safety concerns. Although considered generally secure, the possibility of cyber theft remains a point of ongoing discussion.
Many issuers let you withdraw to any BTC address; others keep it on their platform. Look for a card that supports free, on-chain withdrawals if you prefer self-custody.
Your keys are split among two or more parties (e.g., you + a service). Moving coins needs multiple signatures, giving redundancy without full control to any single party.
We are a small, independent team that has worked in Bitcoin since 2013: running mining farms, designing custody solutions, and building infrastructure for institutions. As long‑term holders who have witnessed bankruptcies caused by human error, weak security, and poor transparency, we created 21Rates so Bitcoiners can stop trusting and start verifying for themselves.
Reach out to info@21rates.com if you're interested in getting involved!
The Greeks measure how option prices respond to various factors: Delta measures sensitivity to BTC price changes, Gamma measures how Delta changes, Theta measures time decay (options lose value as expiration approaches), Vega measures sensitivity to implied volatility, and Rho measures sensitivity to interest rates.
Most Bitcoin inheritance providers use a combination of methods: official death certificates, check-in mechanisms (dead man's switches), legal documentation from estate attorneys, and sometimes third-party verification services. The specific process varies by provider — some like Unchained require legal probate documentation, while others like Casa use automated inactivity detection combined with manual verification.
The podcast is produced by the 21Rates team and features rotating hosts alongside guest experts from Bitcoin lending, custody, ETF management, and corporate treasury sectors.
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Investors typically evaluate aspects such as management fees, the issuer's reputation, and the ETF's tracking accuracy of Bitcoin's price. Since there is no universal solution, the best choice varies based on each investor's specific goals.
Anywhere the underlying network (Visa, Mastercard, etc.) is accepted. Spending BTC directly at checkout usually isn’t required; purchases settle in dollars.
Several regulated institutions each hold key shards, adding geographic and legal separation plus SOC/SOX-level audit trails—often required for funds and ETFs.
If you buy options (long calls or puts), your maximum loss is the premium paid. However, if you sell (write) options, losses can be substantial or theoretically unlimited for naked calls. This is why selling options requires margin and is recommended only for experienced traders.
Yes, but a will alone is insufficient for Bitcoin inheritance. While your will can designate who receives your Bitcoin, it doesn't solve the technical challenge of key access. You need a complementary plan that securely stores private keys or seed phrases and provides your beneficiaries with the knowledge and tools to access them. Many people use a combination of a legal will plus a specialized Bitcoin inheritance service.
Yes. The podcast is exclusively focused on Bitcoin financial services - lending, custody, ETFs, inheritance planning, and corporate adoption. It does not cover altcoins or general cryptocurrency speculation.
Check for a U.S. OCC national trust bank charter, state trust charter (e.g., Wyoming SPDI), or comparable licenses abroad (EU MiCA crypto-asset service provider authorisation).
Implied volatility (IV) represents the market's expectation of future BTC price movement. High IV makes options more expensive; low IV makes them cheaper. Understanding IV helps traders avoid overpaying for options and identify opportunities when volatility is mispriced relative to historical levels.
The 21Rates Inheritance Score is our proprietary 0-100 rating that evaluates Bitcoin inheritance providers across four categories: Security (40 points) covering multisig support, timelocks, and guardian services; Verification (20 points) assessing the deceased verification process; Distribution (20 points) evaluating how funds reach beneficiaries; and Compliance (20 points) measuring legal framework and regulatory adherence.
OCC Interpretive Letters (U.S.), BitLicense (NY), MiCA (EU) approvals, SOC 1 or SOC 2 audit reports, and proof-of-reserves certificates all signal higher standards.
The largest Bitcoin options exchange is Deribit, handling over 85% of global volume. Other platforms include OKX, Binance, and CME Group (for institutional traders). In the US, CME offers regulated Bitcoin options, while Deribit is available in most other jurisdictions.
Costs vary widely depending on the approach. Self-custody solutions with manual key distribution are free but carry higher risk. Collaborative custody services like Casa ($250-500/year) and Unchained ($250/year+) offer managed inheritance features. Full-service estate planning with a crypto-savvy attorney typically costs $1,000-5,000. The cost of not planning — potentially losing all your Bitcoin — far outweighs any service fees.
Expect an annual or assets-under-custody (AUC) fee plus network fees for withdrawals; some charge onboarding or emergency-access fees. Compare total cost with self-custody hardware and insurance you’d need on your own.
Buying protective puts is a popular beginner strategy. If you hold Bitcoin and want downside protection, you buy a put option at a strike price below current BTC price. This limits your loss if BTC drops, similar to insurance. Covered calls (selling calls against BTC you own) are another beginner-friendly strategy for generating income.
Yes, at minimum your executor or a trusted family member should know you own Bitcoin and have a general understanding of how to access it. You don't need to share private keys directly — many inheritance services provide sealed recovery kits or use time-delayed access mechanisms. The key is ensuring someone knows the plan exists and who to contact (your inheritance provider, attorney, or both) when the time comes.
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