NASDAQ:QLYS | Stock Price History | QUALYS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2012-09-28 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$10.21$18.78$34.53$63.48$116.73$214.632012-09-282026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$172.2230,637
2026-09-03$172.8339,270
2026-09-02$179.3561,890
2026-09-01$184.4053,666
2026-08-31$187.9820,480
2026-08-28$186.5135,957
2026-08-27$188.59$188.59935,500$180.2265,714
2026-08-26$176.67$176.67332,200$175.5017,974
2026-08-25$175.94$175.94461,000$179.2239,602
2026-08-24$178.46$178.46440,900$182.1326,951
2026-08-21$181.98$181.98511,200$181.3023,026
2026-08-20$182.21$182.21403,300$185.1116,649
2026-08-19$186.68$186.68447,700$188.1229,275
2026-08-18$187.98$187.98544,400$184.7738,703
2026-08-17$183.31$183.31772,200$183.0760,458
2026-08-14$186.05$186.05565,500$195.4036,835
2026-08-13$195.88$195.88643,200$187.4239,891
2026-08-12$187.15$187.15513,300$185.1822,567
2026-08-11$188.31$188.31722,600$186.2039,865
2026-08-10$185.80$185.80923,300$182.1547,449
2026-08-07$183.48$183.48743,000$183.0645,213
2026-08-06$181.78$181.781,259,600$178.5147,957
2026-08-05$183.25$183.251,620,600$198.0496,533
2026-08-04$161.06$161.061,045,900$150.6263,693
2026-08-03$154.89$154.89959,800$148.4879,505
2026-07-31$144.75$144.75658,700$141.7171,392
2026-07-30$141.71$141.711,052,900$131.9947,437
2026-07-29$135.13$135.13720,000$136.1736,561
2026-07-28$135.75$135.75641,600$136.0541,635
2026-07-27$134.79$134.79786,000$139.3350,448
2026-07-24$137.48$137.48539,400$134.7539,924
2026-07-23$133.74$133.74749,000$142.51104,173
2026-07-22$140.23$140.23699,400$145.2544,290
2026-07-21$143.78$143.781,163,300$155.5088,819
2026-07-20$156.37$156.37492,800$158.0337,709
2026-07-17$159.43$159.43824,200
2026-07-16$157.56$157.56573,500
2026-07-15$159.32$159.32566,000
2026-07-14$164.12$164.12768,400
2026-07-13$151.54$151.54720,900
2026-07-10$152.69$152.69658,700
2026-07-09$159.39$159.39523,500
2026-07-08$153.54$153.54802,800
2026-07-07$157.55$157.551,000,000
2026-07-06$158.26$158.261,008,700
2026-07-02$148.12$148.121,043,100
2026-07-01$143.44$143.44843,000
2026-06-30$137.49$137.491,867,000
2026-06-29$128.32$128.32781,100
2026-06-26$123.27$123.271,691,900
2026-06-25$116.19$116.19476,400
2026-06-24$115.34$115.34542,200
2026-06-23$112.33$112.33563,900
2026-06-22$108.51$108.51710,300
2026-06-18$111.30$111.301,294,800
2026-06-17$112.18$112.18820,100
2026-06-16$113.67$113.67852,400
2026-06-15$114.65$114.65889,700
2026-06-12$111.24$111.24544,900
2026-06-11$110.83$110.83482,600
2026-06-10$110.20$110.20559,500
2026-06-09$109.71$109.71694,200
2026-06-08$110.31$110.31523,300
2026-06-05$109.90$109.90589,300
2026-06-04$111.53$111.53672,400
2026-06-03$111.61$111.61943,800
2026-06-02$113.42$113.42569,400
2026-06-01$114.02$114.02979,300
2026-05-29$109.29$109.29987,500
2026-05-28$100.37$100.37504,900
2026-05-27$98.32$98.32515,300
2026-05-26$102.31$102.31431,900
2026-05-22$102.37$102.37605,600
2026-05-21$100.85$100.85665,800
2026-05-20$100.55$100.55698,300
2026-05-19$100.09$100.09942,200
2026-05-18$97.98$97.981,069,600
2026-05-15$90.02$90.02532,400
2026-05-14$86.73$86.73691,500
2026-05-13$86.50$86.50792,000
2026-05-12$90.12$90.12580,800
2026-05-11$91.53$91.53882,800
2026-05-08$94.28$94.281,144,400
2026-05-07$94.97$94.971,310,100
2026-05-06$90.84$90.841,171,700
2026-05-05$92.14$92.14820,500
2026-05-04$92.49$92.49966,000
2026-05-01$88.53$88.53722,000
2026-04-30$86.93$86.931,042,400
2026-04-29$89.60$89.601,253,100
2026-04-28$85.70$85.70528,700
2026-04-27$85.16$85.16483,800
2026-04-24$84.34$84.34445,800
2026-04-23$84.04$84.04618,100
2026-04-22$88.71$88.71656,600
2026-04-21$86.28$86.28989,200
2026-04-20$82.00$82.001,135,400
2026-04-17$83.17$83.171,368,900
2026-04-16$84.09$84.09950,700
2026-04-15$85.17$85.17821,400