Daily digest / BTC / 2026-08-13 · this week
BTC · Thursday 13 Aug 2026 (UTC) · close
$63,471
+10.3 (+0.02%)
$11.3M liquidated
US-session sell-off, buyers step in
BTC slid $990 from $63,940 at 14:45 to $62,949 by 16:45 UTC. Put writers added the most fresh OI at $58,000 (+414 BTC). Call writers built positions at $63,500–$70,000, led by $67,000 (+505 BTC). Max pain held at $65,000 all session.
Spot
Max pain
PCR
15-min · UTC
Key levels for the next session
$70,000
Call wall · 17,955 BTC OI
resistance
$67,000
Fresh calls +505 BTC
cap
$65,000
Max pain
magnet
$63,500
Fresh calls +341 BTC
cap
$63,471
Close
●
$60,000
Fresh puts +390 BTC · Put wall · 17,800 BTC OI
support
$58,000
Fresh puts +414 BTC
support
Where writers added today
■ calls ■ puts · OI change from the first snapshot to the close, strikes near spot
Move vs what options priced
Next-day ATM straddle at open · IV 25.8%$792
Session range$1,143
One session moved 1.4× the next-day straddle's full priced move.
Last 2 sessions
Max pain: strike where option buyers lose most at expiry. Fresh OI: positions opened this session. PCR: put OI ÷ call OI.
Descriptive summaries of recorded option-chain data. Not trading signals or advice.
Disclaimer →
Related reading
Max pain today →
Live aggregate max pain lander.
PCR today →
Current put-call ratio snapshot.
BTC vs index options →
How crypto expiry and settlement differ.