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RGEN — Repligen Corp

Nasdaq

Repligen Corp

CompareBack to Screener
$163.84
-3.38(-2.02%)
O
164.00
H
164.65
L
157.44
V
1.22M
⏱️ End-of-day dataAs of Oct 8, 2026
OverviewStatisticsFinancialsHistorical DataOptionsDividend HistoryNewsChart
Underlying Price$163.84
Implied Volatility (IV)0.6%
Put / Call Ratio0.32
Total Options Volume50
Total Open Interest5.2K
Selected Expiration2026-10-16

RGEN

Options Calculator
Expiration
CALLSSTRIKEPUTS
CalculatorLastChg% ChgBidAskVolOIIVStrikeLastChg% ChgBidAskVolOIIVCalculator
$30.80+0.00-$17.60$21.10-20.5%$145.00---$0.00$2.65--0.6%
$31.90+0.00-$13.10$16.30-40.5%$150.00---$0.00$3.00--0.6%
$24.40+0.00-$8.80$12.10-10.4%$155.00$0.80+0.00-$0.70$3.60-190.6%
$4.55-19.45-$6.00$7.50370.4%$160.00$5.21+2.61-$2.50$5.201130.6%
$3.62-26.98-$2.80$6.304310.5%$165.00ATM$8.50+4.00-$4.40$7.2033120.5%
$2.45-3.35-$1.30$4.803120.6%$170.00$10.40+3.40-$7.40$10.6054380.6%
$4.35+0.00-$0.05$3.60-120.6%$175.00$7.30+0.00-$11.20$14.20-4520.5%
$1.20-1.85-$0.00$1.201200.6%$180.00$21.40+12.70-$15.40$18.201530.6%

Open Interest & Max Pain

2026-10-16
Max Pain$185.00+12.9% vs price
Call Open Interest2.8K
Put Open Interest2.4K
Put / Call (Open Interest)0.86
CallsPutsPrice $163.84Max painTop of chart = 452 contracts
135
145
155
165
175
185Max pain $185
195

Max pain is the strike where the open options would be worth the least at expiration, i.e. where option buyers as a group would lose the most. The chart shows strikes within 20% of the price. Open interest is from the last end-of-day update.