Last 59 trading days. "Overnight" = today's Open vs the PRIOR day's Close
(the same move plotted as the pink dotted line on the chart) — each day's own Open→Close
move is not counted here. Overnight $/% is what you'd have earned holding only from close
to next open; Cum. Index is the running compounded value shown on the chart's pink line.
Date
Prior Close
Overnight $
Overnight %
Cum. Index
Open
High
Low
Close
2026-07-17
$853.20
-30.68
-3.60%
$822.52
$822.52
$903.93
$804.00
$848.95
2026-07-21
$848.95
+76.40
+9.00%
$896.55
$925.35
$982.88
$916.57
$970.82
2026-07-22
$970.82
-32.39
-3.34%
$866.64
$938.43
$982.62
$936.06
$959.48
2026-07-23
$959.48
+15.75
+1.64%
$880.87
$975.23
$1,011.77
$964.40
$990.21
2026-07-24
$990.21
-31.18
-3.15%
$853.13
$959.03
$967.13
$904.00
$920.95
2026-07-27
$920.95
+11.50
+1.25%
$863.78
$932.45
$935.00
$854.79
$900.20
2026-07-28
$900.20
-59.73
-6.64%
$806.46
$840.47
$848.36
$789.09
$820.53
2026-07-29
$820.53
+12.39
+1.51%
$818.64
$832.92
$841.80
$737.88
$739.00
2026-07-30
$739.00
+54.13
+7.33%
$878.61
$793.13
$882.49
$789.01
$874.66
2026-07-31
$874.66
+44.99
+5.14%
$923.80
$919.65
$930.88
$818.00
$823.03
2026-08-03
$823.03
-36.67
-4.46%
$882.64
$786.36
$836.62
$770.15
$829.50
2026-08-04
$829.50
+37.32
+4.50%
$922.35
$866.82
$902.43
$858.50
$892.67
2026-08-05
$892.67
-7.37
-0.83%
$914.73
$885.30
$928.95
$881.93
$893.19
2026-08-06
$893.19
-50.08
-5.61%
$863.45
$843.11
$913.33
$827.00
$881.47
2026-08-07
$881.47
+23.18
+2.63%
$886.15
$904.65
$904.65
$847.02
$877.57
2026-08-10
$877.57
-13.91
-1.58%
$872.11
$863.66
$894.99
$854.46
$861.00
2026-08-11
$861.00
+10.80
+1.25%
$883.05
$871.80
$876.87
$844.62
$868.52
2026-08-12
$868.52
+44.42
+5.11%
$928.21
$912.94
$935.80
$899.54
$911.29
2026-08-13
$911.29
+1.61
+0.18%
$929.85
$912.89
$978.00
$906.50
$949.83
2026-08-14
$949.83
+29.81
+3.14%
$959.03
$979.64
$984.00
$956.20
$971.66
2026-08-17
$971.66
+27.01
+2.78%
$985.69
$998.67
$1,036.13
$995.26
$1,011.75
2026-08-18
$1,011.75
-54.35
-5.37%
$932.74
$957.40
$978.67
$926.64
$940.76
2026-08-19
$940.76
+18.60
+1.98%
$951.18
$959.36
$959.99
$915.18
$937.11
2026-08-20
$937.11
-1.11
-0.12%
$950.05
$936.00
$977.28
$929.07
$974.33
2026-08-21
$974.33
+15.34
+1.57%
$965.02
$989.67
$989.96
$958.26
$966.78
2026-08-24
$966.78
-32.00
-3.31%
$933.08
$934.78
$936.45
$887.61
$910.43
2026-08-25
$910.43
+18.55
+2.04%
$952.08
$928.98
$946.62
$916.30
$932.97
2026-08-26
$932.97
-7.23
-0.77%
$944.70
$925.74
$945.75
$924.60
$938.40
2026-08-27
$938.40
+28.59
+3.05%
$973.48
$966.99
$968.68
$906.89
$935.39
2026-08-28
$935.39
-15.90
-1.70%
$956.93
$919.49
$946.80
$909.09
$932.86
2026-08-31
$932.86
-1.69
-0.18%
$955.20
$931.17
$959.97
$930.79
$958.73
2026-09-01
$958.73
-19.25
-2.01%
$936.02
$939.48
$969.44
$922.39
$933.44
2026-09-02
$933.44
-2.62
-0.28%
$933.40
$930.83
$958.00
$927.16
$956.08
2026-09-03
$956.08
+0.83
+0.09%
$934.21
$956.91
$959.76
$918.88
$958.16
2026-09-04
$958.16
+12.90
+1.35%
$946.79
$971.06
$1,017.77
$969.00
$1,016.59
2026-09-08
$1,016.59
+20.25
+1.99%
$965.64
$1,036.84
$1,041.07
$997.64
$1,000.26
2026-09-09
$1,000.26
-1.46
-0.15%
$964.24
$998.80
$1,042.40
$992.30
$1,027.77
2026-09-10
$1,027.77
-30.99
-3.02%
$935.16
$996.78
$999.00
$973.50
$977.41
2026-09-11
$977.41
+15.84
+1.62%
$950.32
$993.25
$993.99
$967.38
$975.26
2026-09-14
$975.26
-69.23
-7.10%
$882.86
$906.03
$932.21
$902.60
$924.03
2026-09-15
$924.03
+13.78
+1.49%
$896.02
$937.81
$944.89
$920.13
$927.60
2026-09-16
$927.60
+7.63
+0.82%
$903.39
$935.23
$941.20
$917.65
$926.55
2026-09-17
$926.55
+28.45
+3.07%
$931.13
$955.00
$986.20
$953.50
$977.50
2026-09-18
$977.50
+4.21
+0.43%
$935.14
$981.71
$1,016.44
$977.92
$1,015.80
2026-09-21
$1,015.80
+29.19
+2.87%
$962.01
$1,044.99
$1,064.49
$1,030.68
$1,043.96
2026-09-22
$1,043.96
-10.68
-1.02%
$952.17
$1,033.28
$1,097.25
$1,030.02
$1,096.16
2026-09-23
$1,096.16
+3.78
+0.34%
$955.45
$1,099.94
$1,105.50
$1,064.25
$1,071.88
2026-09-24
$1,071.88
-22.13
-2.06%
$935.73
$1,049.75
$1,081.04
$1,044.00
$1,080.53
2026-09-25
$1,080.53
+14.94
+1.38%
$948.67
$1,095.47
$1,108.72
$1,073.00
$1,082.28
2026-09-28
$1,082.28
-6.30
-0.58%
$943.15
$1,075.98
$1,084.81
$1,032.00
$1,053.98
2026-09-29
$1,053.98
+23.71
+2.25%
$964.36
$1,077.69
$1,082.66
$1,057.70
$1,065.08
2026-09-30
$1,065.08
+11.25
+1.06%
$974.55
$1,076.33
$1,083.50
$1,062.36
$1,065.11
2026-10-01
$1,065.11
-10.77
-1.01%
$964.70
$1,054.34
$1,098.90
$1,022.90
$1,097.39
2026-10-02
$1,097.39
+10.06
+0.92%
$973.54
$1,107.45
$1,107.87
$1,072.02
$1,074.89
2026-10-05
$1,074.89
-5.34
-0.50%
$968.70
$1,069.55
$1,074.88
$1,055.56
$1,063.96
2026-10-06
$1,063.96
+0.52
+0.05%
$969.18
$1,064.48
$1,074.31
$1,045.26
$1,045.56
2026-10-07
$1,045.56
-28.19
-2.70%
$943.05
$1,017.37
$1,089.20
$1,011.42
$1,088.00
2026-10-08
$1,088.00
-10.62
-0.98%
$933.84
$1,077.38
$1,088.50
$1,032.10
$1,035.84
2026-10-09
$1,035.84
+16.67
+1.61%
$948.87
$1,052.51
$1,053.58
$1,017.00
$1,029.00
📈 Overnight % Gain Trend
Cumulative overnight-only return, indexed to 0% on 2026-07-16
(same window as the chart overlay and table above, just plotted as % instead of $).
🗓️ Overnight End-of-Month PnL
One checkpoint per calendar month (value at the last trading day seen that month) from the
same overnight-only cumulative series above. The first and last
month shown may be partial if the data window doesn't start/end on a month boundary.
Month
Start Value
End Value
PnL $
PnL %
2026-07
$853.20
$923.80
+70.60
+8.28%
2026-08
$923.80
$955.20
+31.40
+3.40%
2026-09
$955.20
$974.55
+19.35
+2.03%
2026-10
$974.55
$948.87
-25.68
-2.64%
📅 Seasonality — Close Price by Year
Each line is one calendar year's close price (or % change from that year's first trading
day, in "% from Jan 1" mode), aligned by month/day so the same point in the calendar lines
up across years. Most recent year is drawn thicker. Click a year in the legend to hide/show it.
🌙 Overnight vs. Intraday Return
Overnight (close→next open) Intraday (open→close)
From 2025-04-23 to 2026-10-09 (365 trading days), $1 invested
overnight-only would now be worth $4.90;
$1 invested intraday-only would be worth $2.89.
MU's historical return has leaned mostly on the overnight session.
This reflects a statistical pattern in past prices, not a trading strategy or investment advice —
it ignores transaction costs and slippage.
🎯 Best Strategy Backtest
See which saved strategy has the best real backtested win-rate on MU, with buy/sell triggers plotted right on the chart.