NASDAQ:MKSI | Historical Stock Price | MKS 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
1999-03-30 to 2026-09-04
Data captured

Stock Price Chart

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

$9.31$20.64$45.74$101.38$224.72$498.091999-03-302026-08-27

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

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Historical Stock Price — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$36.13$36.12130,400
1999-12-30$33.00$33.001,500
1999-12-29$33.00$33.007,900
1999-12-28$33.00$33.0064,400
1999-12-27$31.13$31.1229,000
1999-12-23$30.50$30.5035,900
1999-12-22$29.38$29.378,000
1999-12-21$30.13$30.1212,100
1999-12-20$29.63$29.6281,600
1999-12-17$28.00$28.0020,600
1999-12-16$27.38$27.3716,200
1999-12-15$27.75$27.7521,600
1999-12-14$27.13$27.127,100
1999-12-13$27.13$27.1210,500
1999-12-10$27.38$27.3732,700
1999-12-09$28.25$28.2523,100
1999-12-08$27.88$27.8869,600
1999-12-07$29.50$29.5076,800
1999-12-06$26.13$26.1221,700
1999-12-03$25.88$25.8715,400
1999-12-02$25.25$25.25145,100
1999-12-01$24.75$24.7565,800
1999-11-30$24.88$24.8787,300
1999-11-29$25.00$25.0031,900
1999-11-26$25.63$25.6278,900
1999-11-24$25.38$25.3780,400
1999-11-23$25.63$25.6233,100
1999-11-22$27.00$27.008,900
1999-11-19$26.50$26.5018,000
1999-11-18$26.38$26.3754,100
1999-11-17$25.75$25.7534,100
1999-11-16$25.81$25.8124,200
1999-11-15$26.13$26.1259,800
1999-11-12$27.75$27.7515,600
1999-11-11$28.25$28.2523,600
1999-11-10$27.75$27.7559,700
1999-11-09$26.50$26.5011,700
1999-11-08$27.25$27.2548,800
1999-11-05$26.38$26.3719,700
1999-11-04$25.25$25.25115,600
1999-11-03$27.44$27.44116,100
1999-11-02$23.75$23.75120,100
1999-11-01$23.22$23.2272,300
1999-10-29$21.00$21.00140,900
1999-10-28$19.81$19.81135,500
1999-10-27$19.75$19.75114,600
1999-10-26$19.69$19.69458,400
1999-10-25$20.00$20.0092,900
1999-10-22$20.13$20.1297,900
1999-10-21$19.81$19.81545,000
1999-10-20$19.50$19.5097,700
1999-10-19$19.75$19.7515,000
1999-10-18$19.88$19.8718,600
1999-10-15$20.00$20.0042,800
1999-10-14$20.00$20.005,800
1999-10-13$20.00$20.0044,500
1999-10-12$20.25$20.2582,600
1999-10-11$19.38$19.3793,600
1999-10-08$20.25$20.2526,200
1999-10-07$20.06$20.0659,400
1999-10-06$20.25$20.25106,100
1999-10-05$20.88$20.8740,000
1999-10-04$20.88$20.87242,600
1999-10-01$21.02$21.0265,100
1999-09-30$22.25$22.2579,500
1999-09-29$19.69$19.6917,400
1999-09-28$20.00$20.007,400
1999-09-27$19.00$19.0016,200
1999-09-24$18.75$18.75108,200
1999-09-23$18.88$18.8713,000
1999-09-22$18.75$18.7595,900
1999-09-21$18.50$18.50109,600
1999-09-20$18.38$18.3730,800
1999-09-17$19.25$19.2541,900
1999-09-16$19.19$19.194,700
1999-09-15$19.50$19.5017,700
1999-09-14$19.75$19.7517,100
1999-09-13$19.50$19.5022,900
1999-09-10$21.25$21.2546,800
1999-09-09$21.25$21.25241,300
1999-09-08$21.25$21.2581,200
1999-09-07$18.69$18.6937,800
1999-09-03$18.50$18.5051,400
1999-09-02$18.25$18.2544,400
1999-09-01$18.44$18.4429,200
1999-08-31$18.38$18.3714,700
1999-08-30$18.88$18.8718,900
1999-08-27$18.94$18.9427,900
1999-08-26$19.31$19.3120,200
1999-08-25$19.50$19.5034,400
1999-08-24$19.56$19.5633,100
1999-08-23$19.44$19.44130,800
1999-08-20$19.06$19.0616,100
1999-08-19$19.00$19.0020,700
1999-08-18$19.50$19.50153,300
1999-08-17$21.38$21.3734,200
1999-08-16$21.81$21.8123,700
1999-08-13$19.75$19.75122,000
1999-08-12$21.06$21.0682,000
1999-08-11$21.25$21.2540,800
1999-08-10$21.25$21.254,800
1999-08-09$20.75$20.755,400
1999-08-06$21.13$21.12105,400
1999-08-05$21.19$21.19300
1999-08-04$21.25$21.25337,100
1999-08-03$21.00$21.0025,400
1999-08-02$21.31$21.310
1999-07-30$21.31$21.3122,600
1999-07-29$21.00$21.0030,700
1999-07-28$20.00$20.00145,800
1999-07-27$20.38$20.3718,900
1999-07-26$21.00$21.0012,100
1999-07-23$21.00$21.0011,000
1999-07-22$21.63$21.6264,900
1999-07-21$21.75$21.7510,300
1999-07-20$21.75$21.7522,500
1999-07-19$21.75$21.7551,300
1999-07-16$21.44$21.4453,900
1999-07-15$21.25$21.2575,400
1999-07-14$21.00$21.006,700
1999-07-13$20.75$20.75139,100
1999-07-12$21.50$21.50136,900
1999-07-09$20.50$20.5026,600
1999-07-08$19.00$19.0023,300
1999-07-07$19.38$19.3738,900
1999-07-06$19.38$19.3718,800
1999-07-02$19.44$19.4465,300
1999-07-01$18.13$18.1278,900
1999-06-30$18.63$18.62155,400
1999-06-29$18.50$18.5057,700
1999-06-28$19.00$19.00107,500
1999-06-25$17.25$17.25139,300
1999-06-24$17.75$17.7521,200
1999-06-23$17.94$17.9433,300
1999-06-22$19.00$19.0057,100
1999-06-21$18.88$18.8713,200
1999-06-18$17.50$17.5018,000
1999-06-17$16.88$16.87123,600
1999-06-16$15.88$15.8791,700
1999-06-15$17.25$17.2520,500
1999-06-14$19.06$19.0695,300
1999-06-11$19.38$19.37274,000
1999-06-10$18.69$18.69136,700
1999-06-09$16.63$16.6290,400
1999-06-08$16.50$16.5021,500
1999-06-07$16.50$16.5024,900
1999-06-04$16.25$16.2553,100
1999-06-03$15.50$15.5081,900
1999-06-02$15.13$15.12122,600
1999-06-01$15.22$15.2289,200
1999-05-28$15.25$15.2531,700
1999-05-27$14.88$14.878,300
1999-05-26$14.63$14.6242,600
1999-05-25$15.38$15.3791,300
1999-05-24$14.75$14.75318,500
1999-05-21$15.38$15.3732,800
1999-05-20$15.44$15.4478,600
1999-05-19$15.25$15.25211,700
1999-05-18$14.13$14.12144,600
1999-05-17$14.13$14.1221,800
1999-05-14$14.50$14.5073,900
1999-05-13$15.00$15.0055,900
1999-05-12$15.00$15.00563,800
1999-05-11$13.25$13.2557,100
1999-05-10$12.88$12.8745,400
1999-05-07$13.00$13.00111,700
1999-05-06$12.75$12.7540,100
1999-05-05$12.63$12.62135,100
1999-05-04$13.25$13.25124,500
1999-05-03$13.56$13.5617,600
1999-04-30$13.63$13.6283,600
1999-04-29$13.81$13.81106,800
1999-04-28$14.75$14.75236,400
1999-04-27$17.00$17.00102,300
1999-04-26$16.75$16.75319,900
1999-04-23$14.63$14.62749,400
1999-04-22$13.50$13.50179,300
1999-04-21$13.00$13.00237,700
1999-04-20$12.00$12.0010,700
1999-04-19$12.00$12.008,500
1999-04-16$12.13$12.127,100
1999-04-15$12.00$12.0037,700
1999-04-14$12.00$12.00651,600
1999-04-13$13.25$13.2530,500
1999-04-12$13.50$13.5023,000
1999-04-09$13.63$13.62195,100
1999-04-08$14.00$14.0062,000
1999-04-07$14.00$14.00147,600
1999-04-06$13.63$13.62106,200
1999-04-05$13.50$13.50200,600
1999-04-01$13.50$13.50312,400
1999-03-31$13.38$13.37923,300
1999-03-30$14.06$14.064,592,500