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
$401.10
-6.25
-1.56%
$394.86
$394.86
$398.39
$389.39
$393.82
2026-07-21
$393.82
+4.99
+1.27%
$399.85
$398.81
$401.47
$396.32
$397.75
2026-07-22
$397.75
+1.83
+0.46%
$401.69
$399.58
$401.00
$386.97
$390.34
2026-07-23
$390.34
-0.38
-0.10%
$401.31
$389.96
$391.78
$377.40
$381.58
2026-07-24
$381.58
+5.47
+1.43%
$407.06
$387.05
$389.03
$380.65
$381.70
2026-07-27
$381.70
+8.37
+2.19%
$415.99
$390.07
$394.20
$387.99
$389.10
2026-07-28
$389.10
+4.06
+1.04%
$420.33
$393.16
$400.32
$391.30
$393.35
2026-07-29
$393.35
+0.05
+0.01%
$420.38
$393.40
$401.25
$388.74
$390.54
2026-07-30
$390.54
+47.36
+12.13%
$471.36
$437.90
$458.69
$432.44
$451.10
2026-07-31
$451.10
-1.10
-0.24%
$470.21
$450.00
$466.84
$449.55
$464.72
2026-08-03
$464.72
+11.67
+2.51%
$482.02
$476.39
$491.64
$475.00
$487.65
2026-08-04
$487.65
-6.75
-1.38%
$475.35
$480.90
$499.44
$479.17
$492.81
2026-08-05
$492.81
+3.55
+0.72%
$478.77
$496.36
$498.21
$485.68
$487.46
2026-08-06
$487.46
+1.09
+0.22%
$479.84
$488.55
$501.56
$488.52
$499.86
2026-08-07
$499.86
-0.65
-0.13%
$479.22
$499.21
$505.18
$498.73
$499.99
2026-08-10
$499.99
+3.45
+0.69%
$482.52
$503.44
$513.73
$502.50
$506.06
2026-08-11
$506.06
-1.73
-0.34%
$480.87
$504.33
$505.33
$499.55
$503.81
2026-08-12
$503.81
-3.82
-0.76%
$477.23
$499.99
$501.50
$491.52
$492.43
2026-08-13
$492.43
+0.83
+0.17%
$478.04
$493.26
$501.34
$493.01
$496.88
2026-08-14
$496.88
-0.52
-0.11%
$477.53
$496.36
$500.01
$493.93
$495.40
2026-08-17
$495.40
-5.26
-1.06%
$472.46
$490.14
$492.66
$478.41
$480.35
2026-08-18
$480.35
+1.19
+0.25%
$473.63
$481.54
$484.27
$477.15
$481.63
2026-08-19
$481.63
-1.56
-0.32%
$472.09
$480.06
$489.29
$479.55
$484.31
2026-08-20
$484.31
-1.01
-0.21%
$471.11
$483.30
$484.16
$479.50
$481.15
2026-08-21
$481.15
-1.27
-0.26%
$469.86
$479.88
$486.36
$478.53
$483.24
2026-08-24
$483.24
-0.04
-0.01%
$469.83
$483.20
$490.61
$481.86
$487.31
2026-08-25
$487.31
-1.87
-0.38%
$468.03
$485.44
$492.44
$484.30
$491.71
2026-08-26
$491.71
-3.86
-0.79%
$464.35
$487.85
$497.40
$487.31
$496.37
2026-08-27
$496.37
-1.49
-0.30%
$462.96
$494.88
$506.47
$490.08
$505.06
2026-08-28
$505.06
+0.27
+0.05%
$463.21
$505.33
$517.78
$504.87
$513.53
2026-08-31
$513.53
-3.15
-0.61%
$460.37
$510.38
$512.19
$506.40
$507.29
2026-09-01
$507.29
-9.77
-1.93%
$451.50
$497.52
$505.97
$496.78
$501.02
2026-09-02
$501.02
-1.17
-0.23%
$450.44
$499.85
$500.27
$493.81
$496.82
2026-09-03
$496.82
+4.84
+0.97%
$454.83
$501.66
$515.64
$500.80
$510.12
2026-09-04
$510.12
-0.12
-0.02%
$454.73
$510.00
$511.00
$499.36
$499.70
2026-09-08
$499.70
-6.69
-1.34%
$448.64
$493.01
$495.19
$490.15
$493.95
2026-09-09
$493.95
-0.88
-0.18%
$447.84
$493.07
$494.39
$489.80
$491.65
2026-09-10
$491.65
-3.33
-0.68%
$444.81
$488.32
$494.52
$486.00
$492.44
2026-09-11
$492.44
+3.21
+0.65%
$447.70
$495.65
$498.97
$492.58
$495.63
2026-09-14
$495.63
+1.43
+0.29%
$449.00
$497.06
$509.93
$495.34
$505.41
2026-09-15
$505.41
-5.41
-1.07%
$444.19
$500.00
$505.90
$495.54
$497.12
2026-09-16
$497.12
-4.09
-0.82%
$440.54
$493.03
$495.92
$487.23
$490.30
2026-09-17
$490.30
+7.50
+1.53%
$447.27
$497.80
$501.47
$493.27
$497.75
2026-09-18
$497.75
-0.28
-0.06%
$447.02
$497.47
$498.65
$491.10
$493.78
2026-09-21
$493.78
+1.17
+0.24%
$448.08
$494.94
$501.87
$491.33
$501.61
2026-09-22
$501.61
+5.71
+1.14%
$453.18
$507.32
$508.50
$493.65
$498.00
2026-09-23
$498.00
+2.75
+0.55%
$455.68
$500.75
$509.44
$495.90
$500.59
2026-09-24
$500.59
-5.52
-1.10%
$450.66
$495.07
$498.88
$491.22
$497.93
2026-09-25
$497.93
+1.21
+0.24%
$451.75
$499.14
$519.40
$497.30
$516.17
2026-09-28
$516.17
-10.70
-2.07%
$442.39
$505.47
$513.33
$502.22
$509.22
2026-09-29
$509.22
-0.91
-0.18%
$441.60
$508.31
$513.64
$502.40
$508.96
2026-09-30
$508.96
+2.65
+0.52%
$443.90
$511.61
$519.83
$510.33
$512.90
2026-10-01
$512.90
+6.98
+1.36%
$449.94
$519.88
$522.85
$512.17
$512.80
2026-10-02
$512.80
+6.30
+1.23%
$455.46
$519.10
$522.50
$513.66
$517.53
2026-10-05
$517.53
+4.09
+0.79%
$459.06
$521.62
$532.35
$521.53
$525.18
2026-10-06
$525.18
+6.50
+1.24%
$464.74
$531.68
$535.69
$528.82
$529.30
2026-10-07
$529.30
+1.43
+0.27%
$465.99
$530.73
$531.73
$524.69
$529.76
2026-10-08
$529.76
-0.37
-0.07%
$465.67
$529.39
$533.51
$518.79
$522.61
2026-10-09
$522.61
+5.62
+1.08%
$470.68
$528.24
$537.22
$526.24
$535.07
📈 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
$401.10
$470.21
+69.11
+17.23%
2026-08
$470.21
$460.37
-9.84
-2.09%
2026-09
$460.37
$443.90
-16.47
-3.58%
2026-10
$443.90
$470.68
+26.78
+6.03%
📅 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 $1.35;
$1 invested intraday-only would be worth $1.07.
MSFT'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 MSFT, with buy/sell triggers plotted right on the chart.