10 Day Snapshot for ZLAB

Data as of Oct 20, 2026

Ten trading days of price, volume, volatility, and open-interest history. The highest value in each row is green, the lowest red.

DATA IS DELAYED — showing Oct 20, 2026. Subscribe to get the latest end-of-day data.

Last

26.43

Change

-0.43

Open

27.19

26.86

High

27.19

Low

26.15

Bid

Ask

Volume

1,480,513

Trades

Dividend

Yield

Ex-Div

Split Date

Impl Vol

69.3%

Hist Vol

50.6%

Opt Volume

695

Open Int

25,438

10 Day Snapshot	10-07	10-08	10-09	10-12	10-13	10-14	10-15	10-16	10-19	10-20
Stock Price	25.31	24.81	24.99	24.59	23.10	22.50	23.51	23.19	24.06	25.08
Price Change	-0.27	-0.50	0.18	-0.40	-1.49	-0.60	1.01	-0.32	0.87	1.02
Stock Volume	287.19K	979.12K	1.02M	524.50K	776.43K	848.80K	823.99K	843.21K	383.61K	805.47K
Historical Volatility	0.488	0.488	0.487	0.481	0.484	0.481	0.483	0.483	0.484	0.485
Implied Volatility	0.641	0.675	0.744	0.732	0.705	0.693	0.823	1.185	0.868	0.690
Call IVol	-	0.552	0.727	-	0.700	-	-	0.838	0.737	0.673
Put IVol	0.641	0.707	2.031	0.732	0.730	0.693	0.823	1.187	0.868	0.703
Option Volume	1.51K	1.81K	888	461	599	769	1.44K	622	2.31K	1.08K
Call Volume	672	312	503	1	39	19	12	71	268	444
Put Volume	840	1.50K	385	460	560	750	1.43K	551	2.04K	635
Open Interest	14.54K	14.71K	14.92K	14.97K	15.01K	15.11K	15.17K	15.64K	15.71K	17.24K
Call Open Interest	5.30K	5.37K	5.38K	5.40K	5.40K	5.43K	5.42K	5.31K	5.20K	5.25K
Put Open Interest	9.24K	9.33K	9.54K	9.57K	9.61K	9.68K	9.75K	10.32K	10.51K	11.99K
Put/Call Ratio	1.74	1.74	1.77	1.77	1.78	1.78	1.80	1.94	2.02	2.28
Call/Put IVol Ratio	-	0.782	0.358	-	0.959	-	-	0.706	0.848	0.957
Strike Peg (11-20)	27.50	27.50	27.50	27.50	27.50	27.29	27.29	27.29	27.29	27.29
Strike Peg (12-18)	27.85	27.89	27.84	27.83	27.83	27.76	27.76	27.76	27.76	27.76