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Cass Information Systems CASS

US equityMarket cap rank #3525Specialty Business Services
$53.49 −$0.41 (-0.76%)
Pre-market · Oct 8, 8:00 am ET · After hours $53.49 0.00%
Open$53.73
Prev close$53.90
Day range$53.30 – $53.97
Volume47.5K
Market cap$685.00M
P/E (TTM)19.2
Dividend yield2.37%

Average implied volatility across the listed chain right now: 78%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.

Open interest by strike

30405060708085CallsPuts

Nearest listed expiry only. Calls above the line, puts below — clusters mark strikes where the market has built up the most open positions.

Implied volatility by strike

-22%67%155%244%305585CallsPuts

The “volatility smile”: strikes far from the current price often price in richer implied volatility than at-the-money strikes.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $55.00 $1.03 $0.00/$5.00 0 0 50%
16 Oct 2026 $50.00 $4.19 $1.50/$6.00 0 0 41%
16 Oct 2026 $60.00 $0.10 $0.00/$5.00 0 0 48%
16 Oct 2026 $45.00 $8.95 $6.50/$11.00 0 0 81%
16 Oct 2026 $65.00 $0.00 $0.00/$5.00 0 0 47%
16 Oct 2026 $40.00 $13.94 $11.50/$16.00 0 0 124%
16 Oct 2026 $70.00 $0.00 $0.00/$5.00 0 0 47%
16 Oct 2026 $35.00 $18.94 $16.50/$21.00 0 0 170%
16 Oct 2026 $75.00 $0.00 $0.00/$5.00 0 0 59%
16 Oct 2026 $30.00 $23.93 $21.50/$26.00 0 0 222%
16 Oct 2026 $80.00 $0.00 $0.00/$5.00 0 0 69%
16 Oct 2026 $85.00 $0.00 $0.00/$5.00 0 0 79%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $55.00 $2.07 $0.10/$5.00 0 0 52%
16 Oct 2026 $50.00 $0.24 $0.00/$5.00 0 0 42%
16 Oct 2026 $60.00 $6.16 $4.00/$8.50 0 0 0%
16 Oct 2026 $45.00 $0.00 $0.00/$5.00 0 0 43%
16 Oct 2026 $65.00 $11.10 $9.00/$13.50 0 0 0%
16 Oct 2026 $40.00 $0.00 $0.00/$5.00 0 0 52%
16 Oct 2026 $70.00 $16.10 $14.00/$18.40 0 0 0%
16 Oct 2026 $35.00 $0.00 $0.00/$0.20 0 0 74%
16 Oct 2026 $75.00 $21.10 $19.00/$23.50 0 0 0%
16 Oct 2026 $30.00 $0.00 $0.00/$5.00 0 0 100%
16 Oct 2026 $80.00 $26.10 $24.00/$28.50 0 0 0%
16 Oct 2026 $85.00 $31.10 $29.00/$33.50 0 0 0%

Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.

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