The expiry price at which option buyers' total payout is smallest, computed from open interest. There is no rule that price gravitates there; it only shows where positions cluster.
What does the put/call ratio show?
Put open interest divided by call open interest. Above 1 means more positioning in protection. Puts are also bought as hedges, so it does not show direction on its own.
What is implied volatility (IV)?
The expected annualized volatility embedded in option prices. Higher IV means pricier options. The term structure compares short- and long-dated IV; when short-dated is higher (inverted), the market may be pricing a near-term event.
How to read GEX (gamma exposure)?
An estimate of how much option dealers must hedge as price moves. Under the common assumption (dealers long calls, short puts), positive net GEX tends to dampen moves, negative tends to amplify them. Actual dealer positioning is unknown; this is an estimate.
What is unusual options flow?
Patterns such as 24h volume far above open interest, most premium paid by buyers, heavy buying of far out-of-the-money options close to expiry, or a single large trade. ByStock shows them as context; they are not yet tested and are not trading signals.
BTC options open interest across Deribit, OKX, Bybit, Binance: $32.54B (2026-11-06 20:29 UTC). Main expiry (13 Nov 26) max pain $78,000, implied move ±4.0%.
Spot (index)
$75,949
Total open interest
$32.54B
12 expiries
24h volume
$6.50B
Put/Call (OI)
0.75
volume 0.85
ATM IV 7d / 30d
37.2% / 37.6%
flat
Max pain (main expiry)
$78,000
13 Nov 26
Expected move
±4.0%
$72,928 – $78,971
Net GEX
−$3.3M
Neutral · flip $75,971
Where to trade BTC options?
Bybit: USDC-settled BTC, ETH and SOL options. New accounts opened via our invite link get the exchange's fee discount and welcome offers (terms are the exchange's).
🐋 Unusual options flow (last 48h)
From the last 24h of trades: contracts with volume above 3× open interest (at least 1 day to expiry), more than 85% of premium from buyers and not a single trade, buying of options under 2 days to expiry and more than 10% out of the money, or a single large trade. Deep in-the-money options are excluded. CONTEXT — not tested, not a trading signal.
Type
Venue
Detail
Updated
Large trade
Deribit
BTC 81,000 CALL: single buy of $2.34M (block)
11-05 09:00
Buyer-heavy
Deribit
BTC 81,000 CALL: 93% of 24h premium from buyers · $5.17M
11-05 09:00
Buyer-heavy
Deribit
BTC 80,000 PUT: 87% of 24h premium from buyers · $142K
11-05 09:00
Buyer-heavy
Bybit
BTC 76,000 CALL: 86% of 24h premium from buyers · $90K
11-06 16:35
Buyer-heavy
Bybit
BTC 75,000 CALL: 86% of 24h premium from buyers · $76K
11-06 17:35
Buyer-heavy
Deribit
BTC 80,000 CALL: 99% of 24h premium from buyers · $64K
11-05 07:10
Buyer-heavy
Open interest by strike (all expiries)
Green up = calls, red down = puts (in BTC, spot ±30%). Tall bars are where positioning clusters.
GEX profile — gamma levels
Estimated dealer gamma exposure per strike ($ per 1% move). Gold = positive (hedging tends to dampen moves), red = negative (tends to amplify). Assumes dealers long calls, short puts — actual positioning is unknown.
Expiries
Click a row to open that expiry's strike table and IV smile below. Expected move = ATM straddle price (about ±1 standard deviation). RR25 = 25-delta put IV − call IV; positive = downside protection is pricier.
Each point is an expiry (evenly spaced; label = days to expiry). Currently: flat.
40%
17%
1d6d20d139d321d
Option chain — 13 Nov 26 (6d)
IV smile: put IV below spot, call IV above (out-of-the-money side). Price = open-interest-weighted mark of a 1-coin contract across exchanges ($); delta from BSM.
57%
36%
By exchange
Exchange
Open interest
Share
24h volume
Contracts
Deribit
$26.10B
80%
$3.28B
940
OKX
$3.45B
11%
$1.24B
726
Binance
$1.57B
5%
$895.2M
668
Bybit
$1.42B
4%
$1.09B
688
Dollar values = open interest in coins × spot. Binance trade flow is not collected, so flags come from Deribit, OKX and Bybit trades.
Bybit
BTC 79,250 PUT: 90% of 24h premium from buyers · $61K
11-06 00:30
Vol/OI
Bybit
BTC 79,250 PUT: 24h volume 7.3× open interest · premium $61K · expiry 1 days
11-05 23:55
Buyer-heavy
Bybit
BTC 79,250 PUT: 90% of 24h premium from buyers · $61K
11-05 23:55
Buyer-heavy
Bybit
BTC 76,000 CALL: 86% of 24h premium from buyers · $60K
11-06 15:15
Buyer-heavy
Bybit
BTC 78,000 CALL: 99% of 24h premium from buyers · $59K
11-05 00:15
Buyer-heavy
Bybit
BTC 78,000 CALL: 99% of 24h premium from buyers · $59K
11-04 23:55
Buyer-heavy
Bybit
BTC 68,000 PUT: 88% of 24h premium from buyers · $58K
11-06 20:50
Buyer-heavy
Deribit
BTC 82,000 CALL: 86% of 24h premium from buyers · $57K
11-05 08:15
Vol/OI
Bybit
BTC 75,000 CALL: 24h volume 3.6× open interest · premium $55K · expiry 6 days
11-06 20:50
Buyer-heavy
Bybit
BTC 70,000 PUT: 86% of 24h premium from buyers · $50K
11-06 17:20
Buyer-heavy
Bybit
BTC 76,000 CALL: 90% of 24h premium from buyers · $50K
11-06 15:50
Vol/OI
Bybit
BTC 79,500 PUT: 24h volume 6.0× open interest · premium $38K · expiry 1 days
11-05 23:55
Vol/OI
Bybit
BTC 79,500 PUT: 24h volume 6.0× open interest · premium $38K · expiry 1 days
11-06 00:35
Vol/OI
Bybit
BTC 74,000 CALL: 24h volume 4.7× open interest · premium $31K · expiry 21 days
11-06 15:25
Vol/OI
Bybit
BTC 79,250 PUT: 24h volume 5.4× open interest · premium $29K · expiry 1 days
11-06 00:55
Vol/OI
Bybit
BTC 75,500 PUT: 24h volume 3.2× open interest · premium $29K · expiry 1 days
11-06 07:55
Vol/OI
Bybit
BTC 76,000 CALL: 24h volume 3.1× open interest · premium $27K · expiry 1 days
11-06 20:30
Vol/OI
Bybit
BTC 75,000 CALL: 24h volume 3.5× open interest · premium $26K · expiry 15 days
11-04 23:55
Vol/OI
Bybit
BTC 75,000 CALL: 24h volume 3.5× open interest · premium $26K · expiry 15 days
11-05 01:10
Vol/OI
Bybit
BTC 75,000 CALL: 24h volume 3.5× open interest · premium $26K · expiry 14 days
11-06 12:55
Vol/OI
Bybit
BTC 83,000 PUT: 24h volume 3.4× open interest · premium $26K · expiry 14 days
11-05 23:55
Vol/OI
Bybit
BTC 83,000 PUT: 24h volume 3.4× open interest · premium $25K · expiry 14 days
11-06 01:30
Vol/OI
Bybit
BTC 81,000 PUT: 24h volume 3.8× open interest · premium $25K · expiry 2 days
11-05 16:25
Vol/OI
Bybit
BTC 76,000 PUT: 24h volume 3.2× open interest · premium $25K · expiry 1 days