Affiliated Managers Group, Inc. (AMG) — Price History
As of 2026-08-07 — refreshed nightly from the Closelook data lake. Diary readings, not advice.
Daily prices
| Date | Open | High | Low | Close | Chg % | Volume |
|---|---|---|---|---|---|---|
| 2026-08-07 | 373.07 | 378.32 | 367.91 | 369.70 | -0.67% | 186,700 |
| 2026-08-06 | 376.65 | 379.02 | 372.07 | 372.18 | -0.92% | 117,400 |
| 2026-08-05 | 387.61 | 390.99 | 375.45 | 375.62 | -2.03% | 196,100 |
| 2026-08-04 | 382.72 | 392.92 | 382.37 | 383.42 | +0.66% | 290,000 |
| 2026-08-03 | 368.70 | 384.11 | 368.70 | 380.89 | +3.86% | 347,100 |
| 2026-07-31 | 366.13 | 375.41 | 365.00 | 366.73 | +0.35% | 232,400 |
| 2026-07-30 | 363.70 | 374.86 | 355.00 | 365.46 | +1.50% | 321,400 |
| 2026-07-29 | 366.01 | 370.75 | 360.07 | 360.07 | -2.72% | 257,100 |
| 2026-07-28 | 364.04 | 375.00 | 360.95 | 370.12 | +1.74% | 244,178 |
| 2026-07-27 | 361.66 | 369.58 | 359.02 | 363.80 | +1.54% | 199,280 |
| 2026-07-24 | 349.01 | 358.68 | 347.95 | 358.29 | +3.02% | 196,800 |
| 2026-07-23 | 344.11 | 348.75 | 338.44 | 347.77 | +0.31% | 239,700 |
| 2026-07-22 | 340.85 | 356.05 | 340.85 | 346.70 | +1.80% | 350,200 |
| 2026-07-21 | 368.21 | 373.55 | 328.11 | 340.58 | -6.98% | 910,100 |
| 2026-07-20 | 373.24 | 377.16 | 365.86 | 366.12 | -1.00% | 109,700 |
| 2026-07-17 | 367.77 | 373.74 | 359.94 | 369.83 | -1.85% | 217,300 |
| 2026-07-16 | 377.11 | 381.06 | 373.13 | 376.79 | -0.74% | 190,300 |
| 2026-07-15 | 370.00 | 382.75 | 369.93 | 379.59 | +3.71% | 170,500 |
| 2026-07-14 | 359.98 | 368.86 | 359.98 | 366.00 | +1.73% | 194,300 |
| 2026-07-13 | 365.58 | 369.14 | 357.86 | 359.78 | -1.81% | 234,600 |
| 2026-07-10 | 368.40 | 369.94 | 366.20 | 366.41 | +0.40% | 198,100 |
| 2026-07-09 | 359.39 | 366.47 | 356.31 | 364.96 | +2.44% | 221,000 |
| 2026-07-08 | 357.85 | 360.31 | 353.68 | 356.27 | -0.96% | 232,900 |
| 2026-07-07 | 360.45 | 361.75 | 354.40 | 359.72 | +0.87% | 285,000 |
| 2026-07-06 | 345.34 | 357.85 | 344.44 | 356.61 | +3.49% | 292,200 |
| 2026-07-02 | 340.79 | 345.61 | 337.96 | 344.60 | +2.28% | 204,100 |
| 2026-07-01 | 338.50 | 348.50 | 336.76 | 336.91 | -0.44% | 303,900 |
| 2026-06-30 | 344.33 | 349.21 | 336.36 | 338.40 | -1.19% | 550,900 |
| 2026-06-29 | 342.05 | 343.94 | 334.20 | 342.46 | +0.14% | 489,300 |
| 2026-06-26 | 340.19 | 344.55 | 337.57 | 341.98 | +0.56% | 450,900 |
| 2026-06-25 | 342.52 | 346.59 | 337.35 | 340.08 | +0.29% | 199,400 |
| 2026-06-24 | 350.15 | 350.38 | 337.51 | 339.10 | -3.18% | 257,100 |
| 2026-06-23 | 352.27 | 356.34 | 349.35 | 350.22 | -1.98% | 259,600 |
| 2026-06-22 | 354.92 | 358.99 | 349.00 | 357.31 | +1.25% | 317,000 |
| 2026-06-18 | 361.53 | 361.78 | 351.16 | 352.90 | -0.78% | 646,700 |
| 2026-06-17 | 357.42 | 362.94 | 353.94 | 355.67 | -0.51% | 255,900 |
| 2026-06-16 | 355.85 | 359.49 | 353.92 | 357.50 | +1.29% | 169,700 |
| 2026-06-15 | 359.30 | 363.89 | 352.12 | 352.93 | -0.48% | 260,500 |
| 2026-06-12 | 347.08 | 355.55 | 346.00 | 354.62 | +2.99% | 371,500 |
| 2026-06-11 | 341.13 | 345.81 | 335.56 | 344.33 | +2.68% | 233,300 |
| 2026-06-10 | 339.42 | 346.79 | 334.60 | 335.34 | -1.98% | 325,800 |
| 2026-06-09 | 339.58 | 348.15 | 333.01 | 342.12 | +1.63% | 362,700 |
| 2026-06-08 | 337.09 | 345.07 | 334.98 | 336.62 | -0.06% | 613,000 |
| 2026-06-05 | 332.71 | 338.07 | 328.38 | 336.81 | +0.59% | 611,100 |
| 2026-06-04 | 312.62 | 336.76 | 312.62 | 334.82 | +7.45% | 544,300 |
| 2026-06-03 | 306.52 | 312.87 | 299.81 | 311.61 | +0.35% | 383,100 |
| 2026-06-02 | 302.39 | 312.30 | 301.90 | 310.52 | +2.67% | 310,200 |
| 2026-06-01 | 302.39 | 307.35 | 300.04 | 302.45 | -0.13% | 258,100 |
| 2026-05-29 | 303.16 | 307.10 | 301.70 | 302.85 | -0.04% | 500,400 |
| 2026-05-28 | 305.88 | 308.71 | 301.63 | 302.96 | -1.61% | 297,100 |
| 2026-05-27 | 308.95 | 313.35 | 303.51 | 307.92 | -0.24% | 451,300 |
| 2026-05-26 | 304.08 | 309.75 | 303.30 | 308.65 | +2.22% | 227,900 |
| 2026-05-22 | 303.53 | 306.47 | 295.78 | 301.96 | -0.22% | 262,700 |
| 2026-05-21 | 299.42 | 302.84 | 295.41 | 302.63 | +0.43% | 338,100 |
| 2026-05-20 | 296.93 | 303.53 | 294.99 | 301.34 | +2.18% | 355,400 |
| 2026-05-19 | 296.56 | 299.57 | 293.49 | 294.90 | -0.72% | 232,300 |
| 2026-05-18 | 293.97 | 301.39 | 291.25 | 297.03 | +1.06% | 231,800 |
| 2026-05-15 | 299.72 | 301.10 | 293.18 | 293.91 | -2.71% | 308,300 |
| 2026-05-14 | 305.82 | 307.78 | 301.48 | 302.10 | -0.45% | 186,600 |
| 2026-05-13 | 301.33 | 304.57 | 296.32 | 303.48 | +0.65% | 174,500 |
| 2026-05-12 | 300.74 | 303.22 | 296.37 | 301.53 | +0.08% | 285,700 |
| 2026-05-11 | 302.60 | 304.65 | 298.39 | 301.28 | -0.50% | 273,400 |
| 2026-05-08 | 299.27 | 303.40 | 290.90 | 302.80 | +1.69% | 339,900 |
| 2026-05-07 | 308.84 | 310.97 | 296.44 | 297.76 | -2.70% | 318,000 |
| 2026-05-06 | 307.28 | 308.89 | 303.17 | 306.02 | +0.78% | 280,500 |
| 2026-05-05 | 298.83 | 305.97 | 295.82 | 303.64 | +2.05% | 274,900 |
| 2026-05-04 | 292.07 | 305.08 | 291.71 | 297.53 | +2.22% | 373,100 |
| 2026-05-01 | 301.76 | 317.81 | 285.96 | 291.07 | -1.22% | 561,200 |
| 2026-04-30 | 288.19 | 297.72 | 285.00 | 294.67 | +1.93% | 473,700 |
| 2026-04-29 | 292.53 | 293.60 | 287.18 | 289.10 | -1.15% | 335,500 |
| 2026-04-28 | 292.63 | 295.24 | 289.39 | 292.47 | +0.31% | 279,500 |
| 2026-04-27 | 287.18 | 293.56 | 286.31 | 291.57 | +1.44% | 281,200 |
| 2026-04-24 | 287.82 | 291.23 | 283.93 | 287.44 | +1.07% | 302,400 |
| 2026-04-23 | 299.16 | 299.88 | 270.35 | 284.39 | -5.61% | 692,400 |
| 2026-04-22 | 303.10 | 305.46 | 298.89 | 301.30 | +0.13% | 209,400 |
| 2026-04-21 | 302.82 | 306.73 | 299.51 | 300.91 | -0.02% | 209,500 |
| 2026-04-20 | 294.33 | 301.46 | 293.00 | 300.97 | +2.03% | 225,100 |
| 2026-04-17 | 302.62 | 308.06 | 291.19 | 294.98 | -1.48% | 588,400 |
| 2026-04-16 | 301.60 | 304.04 | 295.92 | 299.41 | -0.58% | 346,400 |
| 2026-04-15 | 305.73 | 306.74 | 299.81 | 301.15 | -0.68% | 298,800 |
| 2026-04-14 | 293.45 | 305.87 | 293.45 | 303.21 | +4.16% | 362,700 |
| 2026-04-13 | 281.44 | 292.64 | 281.44 | 291.10 | +2.01% | 235,500 |
| 2026-04-10 | 285.58 | 286.33 | 280.66 | 285.36 | -0.34% | 310,100 |
| 2026-04-09 | 288.08 | 291.32 | 283.31 | 286.32 | -0.06% | 302,400 |
| 2026-04-08 | 279.22 | 287.14 | 279.22 | 286.48 | +5.98% | 506,600 |
| 2026-04-07 | 265.81 | 272.00 | 264.97 | 270.31 | +1.12% | 355,400 |
| 2026-04-06 | 265.01 | 269.68 | 264.01 | 267.31 | +0.68% | 448,100 |
| 2026-04-02 | 267.06 | 270.74 | 254.44 | 265.51 | -2.92% | 393,800 |
| 2026-04-01 | 280.67 | 283.21 | 273.25 | 273.50 | -1.16% | 250,300 |
| 2026-03-31 | 275.00 | 281.15 | 271.10 | 276.70 | +2.53% | 232,500 |
| 2026-03-30 | 272.19 | 275.37 | 268.50 | 269.88 | +0.33% | 316,800 |
| 2026-03-27 | 274.94 | 276.50 | 267.98 | 268.98 | -2.66% | 306,000 |
| 2026-03-26 | 277.25 | 277.27 | 270.08 | 276.34 | -1.54% | 419,500 |
| 2026-03-25 | 278.40 | 283.38 | 277.54 | 280.66 | +1.85% | 215,200 |
| 2026-03-24 | 272.34 | 277.21 | 269.82 | 275.55 | +0.10% | 354,500 |
| 2026-03-23 | 285.44 | 286.76 | 274.88 | 275.28 | -1.04% | 531,100 |
| 2026-03-20 | 278.86 | 280.76 | 274.16 | 278.17 | -0.18% | 675,500 |
| 2026-03-19 | 275.09 | 282.38 | 273.35 | 278.67 | +1.10% | 477,000 |
| 2026-03-18 | 275.45 | 281.06 | 273.84 | 275.65 | -1.15% | 362,800 |
| 2026-03-17 | 276.97 | 285.30 | 276.97 | 278.86 | +2.12% | 322,000 |
| 2026-03-16 | 276.47 | 278.85 | 271.48 | 273.08 | +0.42% | 265,800 |
| 2026-03-13 | 273.54 | 276.58 | 270.06 | 271.95 | +0.56% | 218,500 |
| 2026-03-12 | 275.99 | 278.86 | 267.23 | 270.43 | -4.13% | 397,200 |
| 2026-03-11 | 280.14 | 286.32 | 271.57 | 282.08 | +0.45% | 454,500 |
| 2026-03-10 | 283.54 | 287.61 | 277.30 | 280.82 | -0.25% | 401,000 |
| 2026-03-09 | 280.39 | 283.20 | 269.94 | 281.53 | -1.48% | 457,300 |
| 2026-03-06 | 291.30 | 291.30 | 280.96 | 285.77 | -4.48% | 314,300 |
| 2026-03-05 | 301.00 | 306.10 | 291.25 | 299.18 | -1.30% | 366,000 |
| 2026-03-04 | 313.26 | 313.26 | 300.85 | 303.13 | -2.31% | 505,100 |
| 2026-03-03 | 303.60 | 312.36 | 296.45 | 310.30 | -0.84% | 326,900 |
| 2026-03-02 | 301.33 | 315.89 | 300.62 | 312.92 | +2.20% | 275,400 |
| 2026-02-27 | 307.55 | 307.55 | 297.21 | 306.18 | -2.16% | 448,400 |
| 2026-02-26 | 315.00 | 318.90 | 308.66 | 312.94 | +0.10% | 349,200 |
| 2026-02-25 | 305.12 | 312.79 | 301.97 | 312.63 | +3.47% | 364,300 |
| 2026-02-24 | 291.29 | 302.44 | 291.06 | 302.14 | +3.72% | 490,500 |
| 2026-02-23 | 286.90 | 292.16 | 279.02 | 291.29 | +1.25% | 405,100 |
| 2026-02-20 | 319.47 | 319.76 | 285.63 | 287.69 | -10.72% | 988,500 |
| 2026-02-19 | 327.77 | 330.35 | 320.52 | 322.23 | -2.58% | 325,300 |
| 2026-02-18 | 323.95 | 334.78 | 321.32 | 330.75 | +2.40% | 420,200 |
| 2026-02-17 | 331.95 | 332.85 | 319.35 | 323.01 | -2.06% | 469,200 |
| 2026-02-13 | 330.38 | 330.38 | 319.32 | 329.79 | +0.26% | 453,300 |
| 2026-02-12 | 308.09 | 329.19 | 304.12 | 328.95 | +6.77% | 1,117,000 |
| 2026-02-11 | 304.65 | 310.60 | 289.80 | 308.09 | +1.41% | 822,900 |
| 2026-02-10 | 304.75 | 308.43 | 299.17 | 303.80 | -0.27% | 349,400 |
| 2026-02-09 | 304.35 | 309.54 | 304.34 | 304.62 | -0.29% | 459,400 |
| 2026-02-06 | 306.54 | 313.32 | 300.00 | 305.50 | +1.31% | 358,200 |
| 2026-02-05 | 307.32 | 309.00 | 294.15 | 301.55 | -3.11% | 473,600 |
| 2026-02-04 | 307.55 | 313.17 | 303.58 | 311.24 | +0.92% | 335,800 |
| 2026-02-03 | 316.92 | 319.85 | 302.08 | 308.40 | -2.50% | 474,000 |
| 2026-02-02 | 313.38 | 317.40 | 310.62 | 316.32 | +1.03% | 335,900 |
| 2026-01-30 | 310.25 | 315.51 | 309.70 | 313.09 | +0.10% | 501,400 |
| 2026-01-29 | 316.06 | 319.46 | 309.53 | 312.77 | -0.26% | 292,600 |
| 2026-01-28 | 309.45 | 315.09 | 307.44 | 313.58 | +1.96% | 281,600 |
| 2026-01-27 | 314.87 | 315.50 | 304.92 | 307.56 | -1.67% | 487,800 |
| 2026-01-26 | 321.27 | 322.43 | 309.35 | 312.77 | -2.20% | 532,300 |
| 2026-01-23 | 327.00 | 327.30 | 319.02 | 319.82 | -2.96% | 296,500 |
| 2026-01-22 | 330.54 | 334.00 | 328.37 | 329.57 | +0.49% | 250,600 |
| 2026-01-21 | 321.61 | 331.73 | 321.50 | 327.96 | +2.88% | 455,100 |
| 2026-01-20 | 323.48 | 330.00 | 317.10 | 318.78 | -2.25% | 477,400 |
| 2026-01-16 | 321.22 | 327.53 | 321.22 | 326.12 | +1.21% | 345,500 |
| 2026-01-15 | 317.57 | 325.66 | 317.57 | 322.23 | +2.23% | 384,000 |
| 2026-01-14 | 312.00 | 315.94 | 310.00 | 315.19 | +1.40% | 230,900 |
| 2026-01-13 | 310.71 | 313.56 | 309.32 | 310.84 | -0.46% | 241,000 |
| 2026-01-12 | 305.50 | 313.24 | 303.76 | 312.29 | +1.38% | 373,800 |
| 2026-01-09 | 306.39 | 309.35 | 305.50 | 308.03 | +0.23% | 336,200 |
| 2026-01-08 | 306.45 | 311.51 | 305.34 | 307.31 | -0.13% | 497,200 |
| 2026-01-07 | 309.79 | 309.79 | 303.80 | 307.70 | -0.84% | 410,500 |
| 2026-01-06 | 303.63 | 310.32 | 300.80 | 310.31 | +2.22% | 324,100 |
| 2026-01-05 | 288.93 | 305.63 | 288.93 | 303.57 | +5.10% | 461,600 |
| 2026-01-02 | 288.75 | 291.21 | 287.33 | 288.85 | +0.20% | 515,600 |
| 2025-12-31 | 289.58 | 291.87 | 287.54 | 288.28 | -0.71% | 414,600 |
| 2025-12-30 | 292.00 | 293.35 | 286.32 | 290.35 | -0.59% | 477,900 |
| 2025-12-29 | 294.98 | 298.04 | 290.02 | 292.08 | -1.35% | 470,700 |
| 2025-12-26 | 291.68 | 299.69 | 291.42 | 296.07 | +1.70% | 323,300 |
| 2025-12-24 | 293.03 | 293.74 | 290.88 | 291.13 | -0.40% | 175,200 |
| 2025-12-23 | 287.56 | 292.43 | 287.56 | 292.29 | +1.61% | 368,800 |
| 2025-12-22 | 280.50 | 287.86 | 279.86 | 287.67 | +3.07% | 484,300 |
| 2025-12-19 | 275.91 | 280.52 | 275.38 | 279.09 | +1.55% | 1,097,700 |
| 2025-12-18 | 274.83 | 276.99 | 272.35 | 274.83 | +1.22% | 584,800 |
| 2025-12-17 | 274.94 | 277.65 | 269.51 | 271.51 | -0.60% | 571,800 |
| 2025-12-16 | 275.89 | 275.95 | 270.00 | 273.15 | -0.81% | 296,900 |
| 2025-12-15 | 281.89 | 281.89 | 273.34 | 275.37 | -0.74% | 348,400 |
| 2025-12-12 | 281.98 | 281.98 | 275.20 | 277.41 | -0.98% | 231,000 |
| 2025-12-11 | 279.84 | 283.22 | 277.04 | 280.16 | +0.20% | 666,900 |
| 2025-12-10 | 271.77 | 280.71 | 270.00 | 279.60 | +3.15% | 815,600 |
| 2025-12-09 | 271.05 | 276.20 | 270.00 | 271.06 | +0.31% | 940,000 |
| 2025-12-08 | 273.51 | 275.61 | 267.26 | 270.21 | -1.09% | 232,300 |
| 2025-12-05 | 270.80 | 274.16 | 270.45 | 273.19 | +0.55% | 155,300 |
| 2025-12-04 | 272.17 | 276.40 | 268.14 | 271.69 | +0.05% | 140,700 |
| 2025-12-03 | 266.39 | 272.16 | 266.39 | 271.55 | +2.03% | 200,800 |
| 2025-12-02 | 268.58 | 276.24 | 264.01 | 266.16 | -0.53% | 215,000 |
| 2025-12-01 | 266.41 | 272.00 | 266.41 | 267.58 | -0.46% | 393,500 |
| 2025-11-28 | 264.01 | 270.28 | 264.01 | 268.83 | +0.46% | 116,800 |
| 2025-11-26 | 266.24 | 271.48 | 265.39 | 267.60 | +0.56% | 251,400 |
| 2025-11-25 | 260.60 | 266.30 | 259.84 | 266.11 | +1.09% | 304,700 |
| 2025-11-24 | 257.08 | 263.59 | 256.79 | 263.23 | +2.48% | 272,800 |
| 2025-11-21 | 254.43 | 258.82 | 252.00 | 256.87 | +1.56% | 280,000 |
| 2025-11-20 | 257.83 | 261.27 | 251.33 | 252.92 | -0.37% | 372,900 |
| 2025-11-19 | 250.25 | 254.41 | 248.11 | 253.85 | +1.35% | 414,200 |
| 2025-11-18 | 250.17 | 253.20 | 246.11 | 250.46 | -0.31% | 161,400 |
| 2025-11-17 | 257.74 | 259.60 | 248.71 | 251.23 | -2.74% | 259,300 |
| 2025-11-14 | 257.32 | 259.99 | 254.90 | 258.31 | -0.30% | 308,900 |
| 2025-11-13 | 262.09 | 265.59 | 257.35 | 259.10 | -2.15% | 302,700 |
| 2025-11-12 | 258.02 | 264.81 | 256.92 | 264.80 | +2.78% | 417,800 |
| 2025-11-11 | 259.83 | 260.60 | 256.44 | 257.65 | -0.74% | 512,100 |
| 2025-11-10 | 262.00 | 262.68 | 258.05 | 259.57 | +0.12% | 147,800 |
| 2025-11-07 | 258.09 | 259.33 | 251.19 | 259.26 | +0.18% | 347,400 |
| 2025-11-06 | 256.87 | 261.32 | 254.96 | 258.79 | +0.80% | 280,400 |
| 2025-11-05 | 252.43 | 259.47 | 251.49 | 256.74 | +2.11% | 334,800 |
| 2025-11-04 | 256.54 | 256.54 | 250.87 | 251.44 | -2.00% | 399,700 |
| 2025-11-03 | 247.90 | 256.81 | 242.77 | 256.56 | +7.82% | 698,700 |
| 2025-10-31 | 236.96 | 240.91 | 236.32 | 237.96 | +0.54% | 335,000 |
| 2025-10-30 | 237.19 | 240.19 | 236.50 | 236.68 | -0.51% | 151,700 |
| 2025-10-29 | 238.02 | 240.76 | 235.04 | 237.90 | -1.10% | 172,900 |
| 2025-10-28 | 240.53 | 241.82 | 239.03 | 240.55 | -0.60% | 178,000 |
| 2025-10-27 | 242.99 | 247.66 | 241.84 | 242.01 | +0.72% | 251,700 |
| 2025-10-24 | 238.95 | 243.00 | 237.13 | 240.27 | +0.55% | 191,800 |
| 2025-10-23 | 238.79 | 241.60 | 235.98 | 238.95 | +0.86% | 175,500 |
| 2025-10-22 | 238.82 | 239.97 | 234.23 | 236.91 | -0.79% | 248,500 |
| 2025-10-21 | 240.78 | 245.35 | 237.82 | 238.80 | -1.77% | 276,700 |
| 2025-10-20 | 237.69 | 244.33 | 236.59 | 243.10 | +3.18% | 283,800 |
| 2025-10-17 | 233.45 | 236.68 | 231.53 | 235.60 | +0.75% | 171,000 |
| 2025-10-16 | 240.28 | 242.73 | 232.19 | 233.85 | -2.06% | 204,200 |
| 2025-10-15 | 241.59 | 242.50 | 236.49 | 238.78 | -0.15% | 140,400 |
| 2025-10-14 | 235.05 | 243.65 | 235.05 | 239.13 | +1.01% | 252,500 |
| 2025-10-13 | 233.62 | 238.58 | 233.62 | 236.75 | +2.59% | 139,600 |
| 2025-10-10 | 241.58 | 244.03 | 230.26 | 230.78 | -4.57% | 182,900 |
| 2025-10-09 | 243.81 | 245.93 | 239.54 | 241.83 | -0.12% | 109,100 |
| 2025-10-08 | 241.63 | 245.50 | 238.43 | 242.13 | +0.91% | 177,400 |
| 2025-10-07 | 246.20 | 246.20 | 239.26 | 239.95 | -2.02% | 192,300 |
| 2025-10-06 | 243.21 | 245.98 | 239.07 | 244.90 | +0.77% | 170,800 |
| 2025-10-03 | 238.22 | 243.82 | 237.26 | 243.04 | +2.74% | 437,000 |
| 2025-10-02 | 231.30 | 236.64 | 230.10 | 236.55 | +2.40% | 187,600 |
| 2025-10-01 | 236.85 | 236.85 | 230.89 | 231.01 | -3.11% | 219,300 |
| 2025-09-30 | 238.93 | 240.70 | 236.41 | 238.43 | -0.13% | 144,100 |
| 2025-09-29 | 240.73 | 240.73 | 237.26 | 238.73 | -0.13% | 145,400 |
| 2025-09-26 | 238.38 | 241.02 | 238.21 | 239.04 | +0.58% | 179,800 |
| 2025-09-25 | 235.27 | 238.26 | 235.23 | 237.66 | +0.18% | 134,500 |
| 2025-09-24 | 242.05 | 243.60 | 235.97 | 237.24 | -1.91% | 230,800 |
| 2025-09-23 | 246.14 | 250.15 | 240.80 | 241.85 | -0.89% | 324,300 |
| 2025-09-22 | 242.37 | 245.00 | 240.09 | 244.01 | +0.47% | 211,600 |
| 2025-09-19 | 244.52 | 245.34 | 242.08 | 242.87 | -0.60% | 328,700 |
| 2025-09-18 | 240.00 | 245.97 | 238.30 | 244.34 | +2.54% | 268,000 |
| 2025-09-17 | 235.74 | 240.79 | 234.92 | 238.28 | +1.49% | 346,000 |
| 2025-09-16 | 235.00 | 236.83 | 233.69 | 234.78 | -0.04% | 250,100 |
| 2025-09-15 | 236.11 | 238.14 | 233.69 | 234.88 | -0.52% | 224,100 |
| 2025-09-12 | 235.97 | 238.29 | 235.16 | 236.11 | +0.06% | 206,400 |
| 2025-09-11 | 231.25 | 237.18 | 231.25 | 235.96 | +1.51% | 275,000 |
| 2025-09-10 | 232.13 | 234.62 | 230.28 | 232.44 | +0.21% | 157,800 |
| 2025-09-09 | 230.79 | 233.18 | 229.65 | 231.96 | +0.33% | 197,200 |
| 2025-09-08 | 229.00 | 231.39 | 229.00 | 231.19 | +0.40% | 132,300 |
| 2025-09-05 | 233.37 | 235.00 | 228.53 | 230.28 | -1.19% | 119,600 |
| 2025-09-04 | 232.00 | 233.25 | 228.88 | 233.05 | +1.04% | 144,700 |
| 2025-09-03 | 228.55 | 232.00 | 227.22 | 230.64 | +0.29% | 189,700 |
| 2025-09-02 | 230.61 | 230.61 | 224.59 | 229.97 | +2.29% | 307,200 |
| 2025-08-29 | 227.62 | 227.94 | 223.44 | 224.82 | -1.14% | 137,200 |
| 2025-08-28 | 228.68 | 228.68 | 225.30 | 227.42 | -0.16% | 174,300 |
| 2025-08-27 | 224.83 | 229.40 | 224.76 | 227.79 | +0.65% | 189,600 |
| 2025-08-26 | 224.63 | 226.85 | 224.06 | 226.31 | +0.86% | 190,000 |
| 2025-08-25 | 224.72 | 226.18 | 223.66 | 224.38 | -0.25% | 146,700 |
| 2025-08-22 | 219.52 | 225.98 | 218.22 | 224.94 | +3.02% | 217,000 |
| 2025-08-21 | 215.60 | 219.09 | 215.60 | 218.35 | +0.69% | 92,700 |
| 2025-08-20 | 217.41 | 218.86 | 215.00 | 216.85 | -0.37% | 145,700 |
| 2025-08-19 | 218.45 | 220.31 | 216.42 | 217.65 | -0.66% | 201,200 |
| 2025-08-18 | 216.75 | 219.79 | 215.85 | 219.09 | +0.18% | 258,900 |
| 2025-08-15 | 222.39 | 222.94 | 218.30 | 218.70 | -1.92% | 129,900 |
| 2025-08-14 | 221.59 | 224.30 | 220.01 | 222.99 | -0.16% | 136,800 |
| 2025-08-13 | 220.55 | 223.97 | 218.69 | 223.35 | +1.66% | 221,200 |
| 2025-08-12 | 215.56 | 219.89 | 215.56 | 219.70 | +2.65% | 151,900 |
| 2025-08-11 | 211.71 | 214.68 | 211.71 | 214.02 | +1.29% | 110,400 |
Most recent 250 sessions, newest first.
Seasonal returns
Best month historically: Nov (+9.57%). Worst month: Feb (-4.13%). Based on 5 years of daily data (2022–2026).
FAQ · from the current price data · as of 2026-08-07
Quick answers
What is Affiliated Managers Group, Inc.'s (AMG) latest close?
369.70 on 2026-08-07, from the Closelook data lake's daily price record.
What is AMG's 52-week high and low?
392.92 high and 208.34 low over the trailing 52 weeks, as of 2026-08-07.
What is Affiliated Managers Group, Inc.'s strongest and weakest month historically?
Historically, AMG's strongest calendar month has been Nov (average +9.57%) and its weakest Feb (average -4.13%), based on 5 years of daily data (2022–2026).
How many years of seasonality does this cover?
5 years (2022–2026), computed from 965 daily bars in the Closelook data lake.