Bitcoin Loan Comparison

Strike vs. Unchained

Strike charges 7.49%–10.5% APR with $0 origination fees using custodial (proof-of-reserves for 50+ btc). Unchained charges 14%–15% APR with a 2% origination fee using collaborative multisig (2-of-3). See the full breakdown of rates, thresholds, and custody risk below.

Rates verified 2026-05-14

How do Strike and Unchained compare for Bitcoin-backed loans?

Strike offers a lower headline rate at 7.49%–10.5% compared to Unchained's 14%–15%. On a $1M loan held for 12 months, Strike saves $65,000 in total first-year cost (interest plus origination fees). From a custody perspective, Unchained presents lower counterparty risk with its collaborative multisig (2-of-3) model.

Strike vs. Unchained: Feature-by-Feature Comparison

Strike
Unchained
Interest Rate (APR)
7.49%–10.5%Strike
14%–15%
Origination Fee
$0Strike
2%
Max Starting LTV
50%
50%
Margin Call Threshold
70% LTVStrike
67% LTV
Liquidation Threshold
85% LTVStrike
83% LTV
Margin Call Window
72 hoursStrike
24 hours
Custody Model
Custodial (proof-of-reserves for 50+ BTC)
Collaborative multisig (2-of-3)Unchained
Rehypothecation
No
No
Interest Payment
Monthly
Monthly
Minimum Loan
$10,000Strike
$150,000

APR by Loan Size: Strike vs. Unchained

Strike offers tiered rates that decrease with larger loan amounts, while Unchained structures rates by term-length. Total year-1 cost includes both annualized interest and any origination fees charged upfront.

Loan SizeStrike APRUnchained APRStrike Total Year-1 CostUnchained Total Year-1 CostSavings
$250,0009.5%14%$23,750$40,000$16,250 with Strike
$500,0009.5%14%$47,500$80,000$32,500 with Strike
$1M9.5%14%$95,000$160,000$65,000 with Strike
$5M7.49%14%$374,500$800,000$425,500 with Strike

Total year-1 cost includes annualized interest plus origination fees. Unchained: 2% origination fee. Rates sourced from each lender's public rate pages as of 2026-05-14.

Custody and Collateral Security

Strike and Unchained take fundamentally different approaches to collateral custody. Strike uses Custodial (proof-of-reserves for 50+ BTC). Your Bitcoin is held by Strike and could be at risk in the event of a hack, insolvency, or regulatory action. Unchained uses Collaborative multisig (2-of-3). Multiple key holders must coordinate to move funds, reducing single-point-of-failure risk but still requiring trust in the key coordination process.

Strike: High (Custodial)
  • Custodial (proof-of-reserves for 50+ BTC)
  • Rehypothecation: No
  • Monthly interest payments
  • 0.
Unchained: Medium (Multisig)
  • Collaborative multisig (2-of-3)
  • Rehypothecation: No
  • Monthly interest payments
  • Commercial/institutional only since Jan 2024.

Margin Call and Liquidation: Strike vs. Unchained

Strike triggers margin calls at 70% LTV and liquidates at 85% LTV. Unchained triggers margin calls at 67% LTV and liquidates at 83% LTV. Strike gives borrowers 72 hours to respond, while Unchained provides 24 hours.

ThresholdStrikeUnchained
Max Starting LTV50%50%
Margin Call70% LTV67% LTV
Margin Call Window72 hours24 hours
Liquidation85% LTV83% LTV

Safety Buffer Comparison

Strike: 35.0 percentage point buffer between starting LTV (50%) and liquidation (85%). Unchained: 33.0 percentage point buffer between starting LTV (50%) and liquidation (83%). Strike provides a wider safety margin.

Which is better: Strike or Unchained?

Choosing between Strike and Unchained requires evaluating total cost, custody risk, and which platform aligns with your borrowing profile. Strike uses custodial (proof-of-reserves for 50+ btc) with 7.49%–10.5% APR, while Unchained uses collaborative multisig (2-of-3) with 14%–15% APR.

On a $500,000 loan, Strike costs $47,500 in the first year versus $80,000 at Unchained, a difference of $32,500. Part of Unchained's higher cost comes from its 2% origination fee, which adds $10,000 upfront on this loan size. Strike charges no origination fee, so the only cost is interest.

The custody difference is material. Unchained uses collaborative multisig (2-of-3), which means your Bitcoin requires multiple key holders to coordinate, reducing single-point-of-failure risk. Strike uses custodial (proof-of-reserves for 50+ btc). In a platform insolvency scenario, Unchained borrowers' collateral is protected by the multisig architecture, while Strike borrowers may face creditor claims.

Strike is the better fit for borrowers who are borrowing $10,000 or more and are comfortable with custodial lending. Unchained is the better fit for borrowers who are borrowing $150,000 or more and want collaborative key control.

Key details to be aware of: Strike: 0.79% fee if repaying with BTC collateral, 0. Unchained: Commercial/institutional only since Jan 2024. Uses CTP ratio (inverse of LTV).

Frequently Asked Questions

Is Strike or Unchained cheaper for a $500,000 Bitcoin-backed loan?

Strike is cheaper. On a $500,000 loan held for 12 months, Strike costs $47,500 (9.5% APR) while Unchained costs $80,000 (14% APR + 2% origination fee). That is a $32,500 difference in the first year.

How does Strike's custody model compare to Unchained?

Strike uses custodial (proof-of-reserves for 50+ btc). Unchained uses collaborative multisig (2-of-3). Unchained presents lower custody risk because your collateral requires coordination among multiple key holders.

What is the minimum loan amount at Strike vs Unchained?

Strike's minimum loan is $10,000. Unchained's minimum is $150,000. Strike is more accessible for smaller borrowers.

What happens if Bitcoin drops while I have a loan with Strike or Unchained?

Strike issues a margin call at 70% LTV with a 72-hour response window and liquidates at 85% LTV. Unchained issues a margin call at 67% LTV with a 24-hour response window and liquidates at 83% LTV. Starting from a 50% LTV, Strike provides a 35-point buffer before liquidation, while Unchained provides a 33-point buffer.

Should I use Strike or Unchained for a Bitcoin-backed loan?

It depends on your priorities. Strike (7.49%–10.5% APR, custodial (proof-of-reserves for 50+ btc), min $10,000) is better for borrowers who value custodial (proof-of-reserves for 50+ btc) and have larger borrowing needs. Unchained (14%–15% APR, collaborative multisig (2-of-3), min $150,000) is better for borrowers who value collaborative multisig (2-of-3) and prefer this platform's lending structure. Use the rate table and cost comparison above to model your specific scenario.

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Looking for a non-custodial alternative?

Lygos offers 10% APR, $0 origination fees, and DLC-secured collateral where rehypothecation is cryptographically impossible.