IntraAlpha
Create free account Start free

Stewart Information Services Corporation STC

i

Market dataready · fetched 2026-11-12T00:54:19.738Z

Delta surfaceAlpaca · derived absolute-delta buckets · 2026-11-20

Calculation methodology

Options historyIV: ThetaData historical Greeks, equal-weight mean of call/put 50-delta IV across the next four listed Friday-cycle expirations, including holiday shifts verified against ThetaData’s market calendar. Missing inputs leave gaps. Skew: equal-weight mean of put minus call IV across those four expirations. IV-implied move history: mean of each expiration’s average call/put IV multiplied by the square root of remaining calendar days divided by 365.25; percentage of spot, not a quoted straddle premium.

History data

PriceAlpaca · sip · 2026-11-12T00:00:00.001528592Z

FundamentalsSEC EDGAR · ready · as of 2026-09-30 · fetched 2026-11-12T00:54:19.195862+00:00

Share price$44.12
1D-1.3%
AH$43.08$43.59$44.11$44.63$45.155:30 AM6:30 AM9:00 AM1:00 PM2:00 PMSTC
Sold putSold callAH

Stewart Information Services Corporation options

Live interpolated STC call and put midpoint premiums by absolute delta.Stewart Information Services Corporation$0.62$2.07$3.53$4.98$6.43$39.32$42.11$44.90$47.69$50.4820Δ25Δ30Δ35Δ40Δ45Δ50Δ55Δ60Δ65Δ70Δ75Δ80Δ20Δ C/P unavailable: no unambiguous, price-consistent delta bracketC/P —25Δ C unavailable: no unambiguous, price-consistent delta bracketC —OPTION PRICELive STC spot · $44.12STC PRICE$2.37$2.46$2.46$2.47$2.54$2.79$3.03$3.28$3.52$3.77$4.01$0.77$0.97$1.17$1.37$1.56$1.76$1.96$2.59$3.45$4.30$5.16$6.01
Puts——
Calls——
Skew——
Implied moveBullish±$4.30
Tilt——
Table
Values and derived Greeks for the plotted delta buckets
DeltaCallsPuts
Pseudo strikeIVB/E movePseudo strikeIVB/E move
20Δ
25Δ41.6651.7%7.3%
30Δ55.16208.7%30.4%42.1952.4%6.6%
35Δ52.68187.0%25.0%42.7253.2%5.8%
40Δ49.86156.2%18.6%43.2453.9%5.1%
45Δ47.03125.3%12.2%43.7754.6%4.3%
50Δ44.82101.5%7.4%44.3055.4%3.6%
55Δ44.1895.5%6.5%44.8256.1%2.8%
60Δ43.5589.5%5.6%45.6659.6%2.4%
65Δ42.9183.5%4.7%46.6564.4%2.1%
70Δ42.2777.5%3.8%47.6369.3%1.8%
75Δ41.6471.5%2.9%48.6274.1%1.5%
80Δ41.0065.5%2.0%49.6179.0%1.2%

20Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
IV
B/E move

25Δ

Calls
Pseudo strike
IV
B/E move
Puts
Pseudo strike
41.66
IV
51.7%
B/E move
7.3%

30Δ

Calls
Pseudo strike
55.16
IV
208.7%
B/E move
30.4%
Puts
Pseudo strike
42.19
IV
52.4%
B/E move
6.6%

35Δ

Calls
Pseudo strike
52.68
IV
187.0%
B/E move
25.0%
Puts
Pseudo strike
42.72
IV
53.2%
B/E move
5.8%

40Δ

Calls
Pseudo strike
49.86
IV
156.2%
B/E move
18.6%
Puts
Pseudo strike
43.24
IV
53.9%
B/E move
5.1%

45Δ

Calls
Pseudo strike
47.03
IV
125.3%
B/E move
12.2%
Puts
Pseudo strike
43.77
IV
54.6%
B/E move
4.3%

50Δ

Calls
Pseudo strike
44.82
IV
101.5%
B/E move
7.4%
Puts
Pseudo strike
44.30
IV
55.4%
B/E move
3.6%

55Δ

Calls
Pseudo strike
44.18
IV
95.5%
B/E move
6.5%
Puts
Pseudo strike
44.82
IV
56.1%
B/E move
2.8%

60Δ

Calls
Pseudo strike
43.55
IV
89.5%
B/E move
5.6%
Puts
Pseudo strike
45.66
IV
59.6%
B/E move
2.4%

65Δ

Calls
Pseudo strike
42.91
IV
83.5%
B/E move
4.7%
Puts
Pseudo strike
46.65
IV
64.4%
B/E move
2.1%

70Δ

Calls
Pseudo strike
42.27
IV
77.5%
B/E move
3.8%
Puts
Pseudo strike
47.63
IV
69.3%
B/E move
1.8%

75Δ

Calls
Pseudo strike
41.64
IV
71.5%
B/E move
2.9%
Puts
Pseudo strike
48.62
IV
74.1%
B/E move
1.5%

80Δ

Calls
Pseudo strike
41.00
IV
65.5%
B/E move
2.0%
Puts
Pseudo strike
49.61
IV
79.0%
B/E move
1.2%

Options history

IV · four-Friday blend39.64%
Daily EOD
STC38.6%43.3%48.1%2026-10-19: 40.27%2026-10-20: 40.35%2026-10-21: 41.70%2026-10-22: 39.24%2026-10-23: 40.98%2026-10-26: 46.72%2026-10-27: 44.92%2026-10-28: 42.28%2026-10-29: 47.45%2026-10-30: 39.64%Oct 19Oct 23Oct 30
10 observations2026-10-19 — 2026-10-30
Table
DateIV (%)
40.27%
40.35%
41.70%
39.24%
40.98%
46.72%
44.92%
42.28%
47.45%
39.64%