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
2026-10-27
₱17.20
+0.00
+0.00%
₱18.86
₱17.20
₱17.74
₱17.08
₱17.60
2026-10-26
₱17.12
+0.00
+0.00%
₱18.86
₱17.12
₱17.40
₱16.80
₱17.20
2026-10-23
₱17.90
+0.00
+0.00%
₱18.86
₱17.90
₱17.90
₱17.06
₱17.12
2026-10-22
₱18.08
+0.02
+0.11%
₱18.86
₱18.10
₱18.10
₱17.74
₱17.90
2026-10-21
₱17.80
+0.00
+0.00%
₱18.84
₱17.80
₱18.20
₱17.76
₱18.08
2026-10-20
₱17.40
+0.00
+0.00%
₱18.84
₱17.40
₱17.88
₱17.40
₱17.80
2026-10-19
₱17.06
+0.00
+0.00%
₱18.84
₱17.06
₱17.46
₱17.02
₱17.40
2026-10-16
₱16.68
+0.02
+0.12%
₱18.84
₱16.70
₱17.10
₱16.60
₱17.06
2026-10-15
₱15.80
+0.10
+0.63%
₱18.82
₱15.90
₱16.74
₱15.90
₱16.68
2026-10-14
₱15.70
+0.08
+0.51%
₱18.70
₱15.78
₱16.08
₱15.76
₱15.80
2026-10-13
₱16.00
-0.04
-0.25%
₱18.61
₱15.96
₱15.96
₱15.70
₱15.70
2026-10-12
₱15.88
+0.00
+0.00%
₱18.65
₱15.88
₱16.18
₱15.72
₱16.00
2026-10-09
₱15.82
+0.00
+0.00%
₱18.65
₱15.82
₱16.26
₱15.80
₱15.88
2026-10-08
₱16.30
+0.00
+0.00%
₱18.65
₱16.30
₱16.30
₱15.66
₱15.82
2026-10-07
₱15.86
+0.00
+0.00%
₱18.65
₱15.86
₱16.30
₱15.76
₱16.30
2026-10-06
₱16.54
-0.30
-1.81%
₱18.65
₱16.24
₱16.24
₱15.80
₱15.86
2026-10-05
₱15.86
+0.14
+0.88%
₱19.00
₱16.00
₱16.54
₱15.40
₱16.54
2026-10-02
₱15.80
+0.00
+0.00%
₱18.83
₱15.80
₱16.00
₱15.70
₱15.86
2026-10-01
₱15.86
+0.00
+0.00%
₱18.83
₱15.86
₱16.04
₱15.74
₱15.80
2026-09-30
₱15.90
+0.22
+1.38%
₱18.83
₱16.12
₱16.12
₱15.84
₱15.86
2026-09-29
₱16.00
+0.00
+0.00%
₱18.57
₱16.00
₱16.08
₱15.86
₱15.90
2026-09-28
₱16.00
+0.00
+0.00%
₱18.57
₱16.00
₱16.20
₱15.86
₱16.00
2026-09-25
₱16.00
+0.00
+0.00%
₱18.57
₱16.00
₱16.18
₱15.84
₱16.00
2026-09-24
₱16.24
+0.04
+0.25%
₱18.57
₱16.28
₱16.28
₱15.98
₱16.00
2026-09-23
₱16.10
+0.10
+0.62%
₱18.53
₱16.20
₱16.38
₱16.06
₱16.24
2026-09-22
₱16.50
+0.00
+0.00%
₱18.41
₱16.50
₱16.80
₱15.98
₱16.10
2026-09-21
₱16.50
+0.10
+0.61%
₱18.41
₱16.60
₱16.68
₱16.24
₱16.50
2026-09-18
₱17.20
+0.00
+0.00%
₱18.30
₱17.20
₱17.30
₱16.50
₱16.50
2026-09-17
₱17.36
-0.04
-0.23%
₱18.30
₱17.32
₱17.50
₱17.08
₱17.20
2026-09-16
₱17.60
+0.00
+0.00%
₱18.35
₱17.60
₱17.60
₱17.26
₱17.36
2026-09-15
₱17.74
+0.02
+0.11%
₱18.35
₱17.76
₱18.00
₱17.54
₱17.60
2026-09-14
₱17.72
+0.00
+0.00%
₱18.32
₱17.72
₱17.80
₱17.72
₱17.74
2026-09-11
₱17.90
+0.00
+0.00%
₱18.32
₱17.90
₱17.90
₱17.62
₱17.72
2026-09-10
₱18.10
+0.00
+0.00%
₱18.32
₱18.10
₱18.10
₱17.86
₱17.90
2026-09-09
₱18.40
-0.04
-0.22%
₱18.32
₱18.36
₱18.36
₱17.94
₱18.10
2026-09-08
₱18.26
+0.00
+0.00%
₱18.36
₱18.26
₱18.48
₱18.12
₱18.40
2026-09-07
₱18.34
-0.14
-0.76%
₱18.36
₱18.20
₱18.38
₱18.08
₱18.26
2026-09-04
₱18.30
+0.00
+0.00%
₱18.51
₱18.30
₱18.38
₱18.10
₱18.34
2026-09-03
₱18.10
+0.10
+0.55%
₱18.51
₱18.20
₱18.32
₱18.14
₱18.30
2026-09-02
₱17.90
+0.02
+0.11%
₱18.40
₱17.92
₱18.20
₱17.92
₱18.10
2026-09-01
₱17.84
+0.20
+1.12%
₱18.38
₱18.04
₱18.24
₱17.86
₱17.90
2026-08-28
₱17.80
+0.02
+0.11%
₱18.18
₱17.82
₱17.90
₱17.76
₱17.84
2026-08-27
₱18.10
+0.00
+0.00%
₱18.16
₱18.10
₱18.10
₱17.80
₱17.80
2026-08-26
₱18.10
+0.10
+0.55%
₱18.16
₱18.20
₱18.28
₱18.04
₱18.10
2026-08-25
₱18.16
+0.04
+0.22%
₱18.06
₱18.20
₱18.22
₱18.10
₱18.10
2026-08-24
₱18.24
+0.16
+0.88%
₱18.02
₱18.40
₱18.40
₱18.12
₱18.16
2026-08-20
₱18.30
-0.04
-0.22%
₱17.86
₱18.26
₱18.40
₱18.20
₱18.24
2026-08-19
₱18.12
+0.00
+0.00%
₱17.90
₱18.12
₱18.34
₱17.88
₱18.30
2026-08-18
₱18.18
-0.02
-0.11%
₱17.90
₱18.16
₱18.18
₱18.06
₱18.12
2026-08-17
₱18.28
+0.02
+0.11%
₱17.92
₱18.30
₱18.38
₱18.16
₱18.18
2026-08-14
₱18.20
+0.12
+0.66%
₱17.90
₱18.32
₱18.90
₱18.28
₱18.28
2026-08-13
₱19.58
-0.96
-4.90%
₱17.79
₱18.62
₱18.80
₱18.16
₱18.20
2026-08-12
₱19.10
+0.00
+0.00%
₱18.70
₱19.10
₱19.80
₱19.10
₱19.58
2026-08-11
₱18.30
+0.18
+0.98%
₱18.70
₱18.48
₱19.18
₱18.28
₱19.10
2026-08-10
₱18.20
+0.00
+0.00%
₱18.52
₱18.20
₱18.68
₱18.14
₱18.30
2026-08-07
₱18.26
+0.00
+0.00%
₱18.52
₱18.26
₱18.26
₱18.08
₱18.20
2026-08-06
₱18.30
+0.00
+0.00%
₱18.52
₱18.30
₱18.44
₱18.24
₱18.26
2026-08-05
₱18.40
+0.00
+0.00%
₱18.52
₱18.40
₱18.44
₱18.24
₱18.30
2026-08-04
₱18.56
-0.04
-0.22%
₱18.52
₱18.52
₱18.84
₱18.36
₱18.40
📈 Overnight % Gain Trend
Cumulative overnight-only return, indexed to 0% on 2026-08-03
(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 %
2026-08
₱18.56
₱18.18
-0.38
-2.05%
2026-09
₱18.18
₱18.83
+0.65
+3.58%
2026-10
₱18.83
₱18.86
+0.03
+0.17%
📅 Seasonality — Adjusted Close by Year
Each line is one calendar year's adjusted close price (split- and dividend-adjusted, so a stock split does not show as a
crash), or the % 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 1995-01-03 to 2026-10-23 (7,682 trading days), $1 invested
overnight-only would now be worth $337.07;
$1 invested intraday-only would be worth $0.03.
SMPH'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 SMPH, with buy/sell triggers plotted right on the chart.
Watch an animated paper-trading replay of buying each lower-Bollinger-band touch and selling at the upper band on this stock, with your own capital and look-back, and the profit and loss building up as it plays.