Event risk before this expiration:Jobs report Fri, Nov 6 · CPI release Tue, Nov 10 · Jobs report Fri, Dec 4 · FOMC decision Wed, Dec 9 · CPI release Thu, Dec 10 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.
■ 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 — 100 — is the max pain price.
Open interest by strike · Fri, Jan 19
■ calls (up)■ puts (down)STRC open contracts per strike for Fri, Jan 19.
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, Jan 19
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Fri, Jan 19
— call IV— put IVATM ≈ 13.7% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Fri, Jan 19
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, Jan 19
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
1.00
-0.11
65
0.0068
0.33
-0.00
-0.17
1.00
-0.11
70
0.0088
0.37
-0.00
-0.22
1.00
-0.11
75
0.0112
0.40
-0.00
-0.28
1.00
-0.11
80
0.0135
0.41
-0.00
-0.37
1.00
-0.11
85
0.0143
0.38
-0.00
-0.47
1.00
-0.11
90
0.0121
0.30
0.00
-0.56
0.93
-0.10
95
0.0450
0.23
—
-0.61
0.29
-0.01
100
0.0499
0.33
—
-0.64
0.15
-0.00
105
0.0211
0.26
—
-0.66
0.03
-0.00
130
0.0032
0.10
—
-0.69
0.03
-0.00
135
0.0026
0.09
—
-0.69
0.02
-0.00
140
0.0021
0.08
—
-0.69
0.02
-0.00
145
0.0018
0.07
—
-0.69
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 13 strikes around the money — all 15 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.