NASDAQ:FISI | Historical Stock Price | FINANCIAL INSTITUTIONS 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
1999-06-25 to 2026-09-04
Data captured

Stock Price Chart

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

$3.98$7.74$15.06$29.28$56.95$110.751999-06-252026-08-27

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

View year

Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$31.17$75.74141,800
2025-12-30$31.35$76.17137,500
2025-12-29$31.60$76.78171,900
2025-12-26$31.99$77.73115,800
2025-12-24$31.90$77.51103,000
2025-12-23$31.85$77.39126,900
2025-12-22$31.97$77.68161,100
2025-12-19$32.03$77.82335,600
2025-12-18$32.63$79.28156,100
2025-12-17$32.22$78.29120,500
2025-12-16$32.27$78.41121,500
2025-12-15$32.40$78.72132,100
2025-12-12$32.75$78.8295,800
2025-12-11$32.61$78.4897,100
2025-12-10$32.47$78.15217,100
2025-12-09$31.34$75.4372,600
2025-12-08$31.07$74.78100,800
2025-12-05$30.86$74.2763,300
2025-12-04$31.24$75.1982,200
2025-12-03$31.26$75.24106,500
2025-12-02$30.55$73.5358,700
2025-12-01$30.64$73.74174,100
2025-11-28$30.60$73.6557,100
2025-11-26$30.59$73.6269,400
2025-11-25$30.76$74.03218,300
2025-11-24$29.65$71.36139,600
2025-11-21$29.47$70.93122,100
2025-11-20$28.50$68.5997,200
2025-11-19$28.59$68.8192,700
2025-11-18$28.31$68.14104,200
2025-11-17$28.52$68.64122,800
2025-11-14$29.25$70.4089,600
2025-11-13$29.47$70.93111,200
2025-11-12$29.60$71.2484,000
2025-11-11$29.70$71.4870,300
2025-11-10$29.79$71.7087,400
2025-11-07$29.33$70.59193,400
2025-11-06$29.08$69.9978,200
2025-11-05$29.24$70.3797,400
2025-11-04$28.76$69.22120,900
2025-11-03$29.03$69.87135,600
2025-10-31$28.43$68.42122,000
2025-10-30$28.67$69.00103,300
2025-10-29$28.92$69.60293,200
2025-10-28$29.46$70.90138,500
2025-10-27$29.45$70.88273,000
2025-10-24$28.95$69.68307,300
2025-10-23$26.48$63.73143,000
2025-10-22$26.63$64.0962,000
2025-10-21$26.60$64.0268,800
2025-10-20$26.51$63.8089,500
2025-10-17$25.72$61.90149,900
2025-10-16$25.86$62.24232,300
2025-10-15$26.98$64.9387,300
2025-10-14$27.49$66.1698,000
2025-10-13$26.67$64.1980,200
2025-10-10$26.25$63.18215,400
2025-10-09$27.09$65.20130,600
2025-10-08$27.04$65.0888,900
2025-10-07$27.34$65.80102,300
2025-10-06$27.42$65.99135,200
2025-10-03$27.09$65.20115,000
2025-10-02$26.88$64.69109,300
2025-10-01$27.11$65.25154,700
2025-09-30$27.20$65.46323,800
2025-09-29$27.10$65.22133,700
2025-09-26$27.45$66.07107,800
2025-09-25$27.23$65.5470,300
2025-09-24$27.21$65.4978,600
2025-09-23$27.16$65.37211,100
2025-09-22$26.70$64.2690,700
2025-09-19$27.01$65.01208,400
2025-09-18$27.45$66.07103,700
2025-09-17$26.42$63.59142,300
2025-09-16$26.29$63.27183,600
2025-09-15$26.57$63.9591,600
2025-09-12$27.05$64.3696,400
2025-09-11$27.24$64.81106,000
2025-09-10$27.20$64.7165,400
2025-09-09$27.33$65.0260,300
2025-09-08$27.66$65.8168,700
2025-09-05$27.45$65.31155,800
2025-09-04$27.76$66.05104,500
2025-09-03$27.30$64.9571,800
2025-09-02$27.38$65.1488,700
2025-08-29$27.67$65.8364,000
2025-08-28$27.62$65.71132,500
2025-08-27$27.61$65.6981,000
2025-08-26$27.53$65.50167,300
2025-08-25$27.14$64.57105,300
2025-08-22$27.20$64.71513,300
2025-08-21$25.90$61.6263,400
2025-08-20$25.95$61.7498,900
2025-08-19$25.84$61.4884,600
2025-08-18$25.94$61.72170,400
2025-08-15$25.78$61.33213,200
2025-08-14$26.39$62.79129,200
2025-08-13$26.46$62.95247,100
2025-08-12$26.00$61.86105,500
2025-08-11$24.87$59.1770,900
2025-08-08$24.88$59.1985,100
2025-08-07$24.69$58.7488,900
2025-08-06$24.85$59.1267,000
2025-08-05$25.11$59.74114,600
2025-08-04$25.11$59.7492,500
2025-08-01$24.92$59.29158,800
2025-07-31$25.49$60.65152,900
2025-07-30$25.56$60.81110,100
2025-07-29$25.91$61.64151,000
2025-07-28$26.46$62.95123,500
2025-07-25$26.06$62.00218,300
2025-07-24$26.32$62.62145,800
2025-07-23$27.18$64.67110,600
2025-07-22$27.17$64.64276,800
2025-07-21$27.23$64.78165,900
2025-07-18$27.25$64.83120,100
2025-07-17$27.25$64.83142,100
2025-07-16$26.91$64.02217,500
2025-07-15$26.80$63.76148,100
2025-07-14$27.59$65.64100,700
2025-07-11$27.02$64.29115,300
2025-07-10$27.27$64.8880,400
2025-07-09$27.23$64.7876,400
2025-07-08$27.35$65.07177,900
2025-07-07$27.01$64.26171,500
2025-07-03$27.42$65.24125,600
2025-07-02$26.93$64.07233,800
2025-07-01$26.44$62.91133,300
2025-06-30$25.68$61.10186,700
2025-06-27$25.92$61.67639,900
2025-06-26$25.81$61.41221,400
2025-06-25$25.16$59.86159,700
2025-06-24$25.53$60.74129,500
2025-06-23$25.33$60.26228,700
2025-06-20$24.60$58.53420,300
2025-06-18$24.55$58.4175,700
2025-06-17$24.44$58.1594,700
2025-06-16$24.83$59.07157,700
2025-06-13$24.97$59.41158,500
2025-06-12$26.07$61.2992,600
2025-06-11$26.26$61.7386,300
2025-06-10$26.38$62.0299,400
2025-06-09$26.05$61.2474,200
2025-06-06$25.80$60.6562,500
2025-06-05$25.17$59.1775,800
2025-06-04$25.39$59.6982,400
2025-06-03$25.89$60.8682,100
2025-06-02$25.52$59.9997,000
2025-05-30$25.82$60.7082,500
2025-05-29$25.72$60.4676,800
2025-05-28$25.70$60.4270,800
2025-05-27$25.98$61.0873,200
2025-05-23$25.38$59.6784,600
2025-05-22$25.58$60.14112,700
2025-05-21$25.89$60.86104,200
2025-05-20$26.81$63.0359,500
2025-05-19$27.02$63.5295,100
2025-05-16$26.93$63.3173,600
2025-05-15$27.17$63.8789,100
2025-05-14$26.93$63.3187,700
2025-05-13$27.23$64.0172,100
2025-05-12$26.91$63.26101,000
2025-05-09$26.26$61.7378,800
2025-05-08$26.53$62.37109,800
2025-05-07$25.75$60.5498,900
2025-05-06$25.98$61.08104,500
2025-05-05$26.15$61.48108,700
2025-05-02$26.20$61.59145,900
2025-05-01$25.54$60.04154,500
2025-04-30$25.39$59.69188,300
2025-04-29$25.45$59.83342,400
2025-04-28$24.06$56.56118,300
2025-04-25$23.86$56.0993,900
2025-04-24$23.96$56.33125,200
2025-04-23$23.67$55.65143,200
2025-04-22$23.29$54.75144,700
2025-04-21$22.29$52.40141,600
2025-04-17$22.35$52.54241,200
2025-04-16$22.46$52.80126,600
2025-04-15$22.47$52.82201,300
2025-04-14$21.88$51.44210,700
2025-04-11$21.43$50.38295,900
2025-04-10$22.01$51.74240,300
2025-04-09$23.01$54.09336,200
2025-04-08$21.90$51.48220,700
2025-04-07$22.07$51.88293,200
2025-04-04$22.12$52.00338,900
2025-04-03$22.51$52.92309,400
2025-04-02$25.33$59.55152,100
2025-04-01$24.84$58.40104,400
2025-03-31$24.96$58.68165,800
2025-03-28$25.00$58.77110,100
2025-03-27$25.56$60.09126,500
2025-03-26$25.77$60.5895,500
2025-03-25$25.94$60.98133,300
2025-03-24$26.31$61.85147,700
2025-03-21$25.37$59.641,130,100
2025-03-20$25.68$60.37172,800
2025-03-19$25.98$61.08191,900
2025-03-18$25.72$60.46226,300
2025-03-17$25.83$60.72164,800
2025-03-14$26.05$61.24283,200
2025-03-13$26.00$60.39229,000
2025-03-12$26.25$60.97215,300
2025-03-11$25.87$60.09297,000
2025-03-10$25.94$60.25307,900
2025-03-07$26.93$62.55181,600
2025-03-06$26.90$62.48175,600
2025-03-05$27.08$62.90149,800
2025-03-04$27.00$62.72171,700
2025-03-03$27.76$64.48119,200
2025-02-28$28.02$65.09112,400
2025-02-27$27.73$64.41115,300
2025-02-26$27.83$64.64162,100
2025-02-25$28.16$65.41154,500
2025-02-24$28.21$65.53234,100
2025-02-21$28.66$66.57169,800
2025-02-20$29.16$67.73164,900
2025-02-19$29.63$68.83169,000
2025-02-18$29.56$68.66157,200
2025-02-14$28.89$67.11154,000
2025-02-13$28.45$66.09131,200
2025-02-12$28.00$65.0490,900
2025-02-11$28.39$65.95150,100
2025-02-10$27.98$64.99101,700
2025-02-07$27.93$64.88149,200
2025-02-06$28.33$65.81104,400
2025-02-05$27.88$64.7686,400
2025-02-04$27.63$64.18202,900
2025-02-03$26.72$62.07233,400
2025-01-31$26.37$61.25415,800
2025-01-30$27.16$63.09120,700
2025-01-29$27.19$63.16196,700
2025-01-28$27.03$62.79144,200
2025-01-27$27.22$63.2382,900
2025-01-24$27.08$62.90184,100
2025-01-23$26.85$62.3791,400
2025-01-22$26.98$62.6770,900
2025-01-21$27.33$63.4876,800
2025-01-17$26.97$62.65463,300
2025-01-16$26.62$61.83171,600
2025-01-15$27.20$63.1878,200
2025-01-14$26.69$62.0085,100
2025-01-13$25.80$59.9378,800
2025-01-10$25.66$59.60130,000
2025-01-08$26.25$60.9772,700
2025-01-07$26.37$61.25115,000
2025-01-06$26.70$62.02115,500
2025-01-03$26.81$62.2885,500
2025-01-02$26.81$62.28125,700