■ 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 — 1420 — is the max pain price.
Open interest by strike · Fri, Sep 18
■ calls (up)■ puts (down)MPWR open contracts per strike for Fri, Sep 18.
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, Sep 18
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Sep 18
— call IV— put IVATM ≈ 56.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Sep 18
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, Sep 18
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.76
-1.11
1260
0.0012
1.35
-1.11
-0.24
0.73
-1.17
1280
0.0013
1.43
-1.17
-0.27
0.71
-1.22
1300
0.0014
1.50
-1.23
-0.30
0.68
-1.27
1320
0.0015
1.56
-1.28
-0.33
0.65
-1.31
1340
0.0015
1.62
-1.32
-0.36
0.61
-1.34
1360
0.0016
1.66
-1.35
-0.39
0.58
-1.37
1380
0.0016
1.70
-1.38
-0.42
0.55
-1.38
1400
0.0016
1.72
-1.40
-0.45
0.52
-1.39
1420
0.0016
1.73
-1.41
-0.49
0.48
-1.39
1440
0.0016
1.73
-1.41
-0.52
0.45
-1.38
1460
0.0016
1.72
-1.40
-0.55
0.42
-1.36
1480
0.0016
1.70
-1.38
-0.58
0.39
-1.34
1500
0.0016
1.67
-1.36
-0.61
0.36
-1.31
1520
0.0015
1.63
-1.33
-0.64
0.31
-1.24
1560
0.0014
1.53
-1.26
-0.69
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 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.