■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 900 — is the max pain price.
Open interest by strike · Fri, Nov 20
■ calls (up)■ puts (down)ARGX open contracts per strike for Fri, Nov 20.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Fri, Nov 20
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Nov 20
— call IV— put IVATM ≈ 36.3% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Nov 20
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Fri, Nov 20
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.82
-0.26
860
0.0013
1.36
-0.28
-0.18
0.79
-0.28
880
0.0015
1.49
-0.30
-0.22
0.76
-0.31
900
0.0016
1.61
-0.32
-0.25
0.72
-0.33
920
0.0018
1.72
-0.34
-0.29
0.68
-0.35
940
0.0019
1.82
-0.36
-0.33
0.64
-0.36
960
0.0020
1.91
-0.38
-0.37
0.60
-0.37
980
0.0021
1.97
-0.39
-0.41
0.56
-0.38
1000
0.0021
2.01
-0.39
-0.45
0.47
-0.38
1040
0.0022
2.03
-0.39
-0.54
0.43
-0.37
1060
0.0021
2.00
-0.39
-0.58
0.39
-0.36
1080
0.0021
1.96
-0.38
-0.63
0.35
-0.35
1100
0.0020
1.90
-0.37
-0.67
0.28
-0.32
1140
0.0018
1.74
-0.34
-0.74
0.25
-0.30
1160
0.0018
1.64
-0.32
-0.77
0.23
-0.29
1180
0.0016
1.54
-0.30
-0.80
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 47 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.