Strategies / Mean reversion / Monday Dip Turnaround

Monday Dip Turnaround: buying weakness early in the week

On Mondays, if price is below its 34 period SMA, this strategy buys and aims to catch a rebound during the next two days. It sells on Wednesday unless the 2.3% target or the 2.6% stop is hit first. It trades long only.

Mean reversionLong onlyIntradayS&P 5005 min

1.90Profit factor

2,493Net profit EUR

65.79%Win rate

152Trades

-442Max drawdown

16.40Avg trade

Best run of 72. S&P 500, 5 min, spread 1, from run pf:2026-09-24-USA500-5m.tsv:2.

Entry rules, long

It is Monday
Members only

Exit rules

Members only
Stop loss 2.6%
Profit target 2.3%

Test conditions

Period	Up to 2026-09-25
Instrument	S&P 500, 5 minutes
Spread	1 points
Contracts	1
Starting capital	1,000,000
Costs	Spread only. Commissions and overnight financing are not included.
Bars	Up to 200,000 bars, fewer where the instrument has less history
Last tested	2026-09-25

Parameters

positionSize Shares per trade	1
entryDay Day of week to buy (1 = Monday)	1
exitDay Day of week to sell (3 = Wednesday)	3
trendPeriod Buy only while price is below this moving average	34
stopLossPct Protective stop, percent of entry price	2.6
takeProfitPct Profit target, percent of entry price	2.3

Every run

Markets and timeframes tested

Market	Timeframe	PF	Trades	Win %	Net	Max DD
S&P 500Best run	5 min	1.90	152	65.79	2,493 EUR	-442
Dow Jones	5 min	1.77	149	59.06	15,557 EUR	-2,807
DAX 40	5 min	1.53	155	56.77	7,507 EUR	-1,626
Dow Jones	4 hours	1.52	216	56.48	16,581 EUR	-3,680
USD/JPY	10 min	1.50	279	60.57	431,700 JPY	-89,560
S&P 500	10 min	1.50	301	58.14	2,876 EUR	-497
Dow Jones	30 min	1.47	346	55.49	22,453 EUR	-3,132
Dow Jones	10 min	1.47	292	55.82	18,828 EUR	-3,126
Nikkei 225	Daily	1.46	360	59.72	20,807 USD	-4,148
Dow Jones	15 min	1.44	370	55.14	22,624 EUR	-3,048
Nasdaq 100	10 min	1.43	317	58.36	12,996 EUR	-2,239
USD/JPY	15 min	1.38	418	56.22	440,920 JPY	-81,810
S&P 500	15 min	1.38	451	57.43	3,080 EUR	-502
Nasdaq 100	15 min	1.31	480	56.88	12,484 EUR	-2,427
DAX 40	15 min	1.30	464	56.03	10,732 EUR	-2,115
Dow Jones	1 hour	1.29	290	53.10	12,725 EUR	-3,126
FTSE 100	4 hours	1.26	659	56.60	5,389 EUR	-1,227
S&P 500	30 min	1.25	846	54.85	2,695 EUR	-537
S&P 500	4 hours	1.23	619	55.74	1,878 EUR	-445
USD/JPY	4 hours	n/a	715	53.99	423,570 JPY	-124,090
USD/JPY	30 min	n/a	794	53.78	301,710 JPY	-153,640
EUR/USD	5 min	n/a	222	54.95	37,890 USD	-14,197
EUR/USD	4 hours	n/a	949	51.63	37,427 USD	-31,829
EUR/USD	1 hour	n/a	1,294	50.62	36,914 USD	-35,017
Dow Jones	3 min	n/a	90	67.78	16,118 EUR	-2,503
Nikkei 225	30 min	n/a	829	53.44	15,803 USD	-6,804
Nikkei 225	5 min	n/a	171	59.65	14,579 USD	-6,037
Nikkei 225	3 min	n/a	105	64.76	13,972 USD	-7,265
Nikkei 225	4 hours	n/a	541	55.27	13,180 USD	-6,210
Nikkei 225	10 min	n/a	317	56.78	12,893 USD	-6,724
Nikkei 225	15 min	n/a	474	54.64	12,675 USD	-7,540
Nikkei 225	1 hour	n/a	711	53.73	12,341 USD	-5,112
Dow Jones	Daily	n/a	121	55.37	11,484 EUR	-3,409
Nasdaq 100	30 min	n/a	846	55.67	10,206 EUR	-2,808
DAX 40	4 hours	n/a	679	55.52	10,106 EUR	-2,670
Nasdaq 100	1 hour	n/a	920	54.89	8,918 EUR	-2,901
Dow Jones	2 min	n/a	59	61.02	8,684 EUR	-2,189
DAX 40	Daily	n/a	386	56.99	8,445 EUR	-2,840
Nikkei 225	1 min	n/a	41	60.98	7,898 USD	-7,469
Nikkei 225	2 min	n/a	71	59.15	7,824 USD	-7,483
DAX 40	30 min	n/a	877	54.05	7,685 EUR	-3,462
Dow Jones	1 min	n/a	30	70.00	7,325 EUR	-2,208
DAX 40	10 min	n/a	299	54.85	7,267 EUR	-2,103
Nasdaq 100	5 min	n/a	158	60.13	7,156 EUR	-2,838
Nasdaq 100	3 min	n/a	98	61.22	7,109 EUR	-2,701
DAX 40	3 min	n/a	97	60.82	7,002 EUR	-1,598
DAX 40	1 hour	n/a	916	54.37	6,789 EUR	-3,273
Nasdaq 100	Daily	n/a	353	56.94	5,314 EUR	-2,569
Nasdaq 100	4 hours	n/a	666	55.56	4,130 EUR	-3,470
FTSE 100	15 min	n/a	456	56.14	3,618 EUR	-1,410
DAX 40	1 min	n/a	33	66.67	3,473 EUR	-1,454
FTSE 100	Daily	n/a	413	55.45	3,239 EUR	-1,033
Nasdaq 100	2 min	n/a	61	55.74	3,189 EUR	-2,719
DAX 40	2 min	n/a	61	55.74	3,166 EUR	-1,404
FTSE 100	30 min	n/a	859	54.71	3,041 EUR	-1,967
EUR/USD	1 min	n/a	28	53.57	3,018 USD	-3,013
FTSE 100	1 hour	n/a	881	54.14	2,506 EUR	-2,223
GBP/USD	15 min	n/a	418	52.87	2,238 USD	-1,803
FTSE 100	3 min	n/a	90	62.22	2,085 EUR	-440
FTSE 100	10 min	n/a	290	55.52	2,032 EUR	-1,436
S&P 500	1 hour	n/a	917	53.54	2,007 EUR	-600
S&P 500	3 min	n/a	92	65.22	1,953 EUR	-447
GBP/USD	5 min	n/a	139	55.40	1,563 USD	-405
FTSE 100	5 min	n/a	147	57.14	1,366 EUR	-1,070
S&P 500	Daily	n/a	341	57.77	1,329 EUR	-491
GBP/USD	3 min	n/a	83	55.42	1,191 USD	-384
FTSE 100	2 min	n/a	59	59.32	1,144 EUR	-439
FTSE 100	1 min	n/a	30	60.00	1,134 EUR	-441
S&P 500	2 min	n/a	59	62.71	1,086 EUR	-271
S&P 500	1 min	n/a	30	60.00	786 EUR	-272
GBP/USD	2 min	n/a	55	54.55	704 USD	-330
GBP/USD	1 min	n/a	28	53.57	370 USD	-289

Charts

Results by run

Profit factor by run

Above 1.0 made money, below 1.0 lost money.

Net profit against max drawdown

Net profitMax drawdown

Longer history

Re-run on up to 1,000,000 bars

On S&P 500 5 minutes, 947,000 bars were available and profit rose to EUR 3,880.39 from EUR 2,493.14 in the standard run, with EUR 1,387.25 earned on the older data alone.

S&P 500 · 5 min

Bars available	947,000
Net, standard 200,000-bar run	2,493.14 EUR
Net, long run	3,880.39 EUR
Net on the older data alone	1,387.25 EUR

The code

ProBuilder, rewritten to house standard

Every file in the library uses the same header, the same section order and the same variable names. The numbers above were produced by the original version before the rewrite, and the rewrite has not yet been compiled in ProRealTime.

// ============================================================
// Monday Dip Turnaround
// ProRealAlgos Strategy Library  |  prorealalgos.com
// Type: Mean reversion
// Direction: Long only
// Timeframe tested: 5 minutes
// ============================================================

// --- Settings ---
DEFPARAM CumulateOrders = false

// --- Parameters ---
positionSize = 1          // shares per trade
entryDay = 1              // day of week to buy (1 = Monday)
exitDay = 3               // day of week to sell (3 = Wednesday)
trendPeriod = 34          // buy only while price is below this moving average
stopLossPct = 2.6         // protective stop, percent of entry price
takeProfitPct = 2.3       // profit target, percent of entry price

// --- Indicators ---
trendMA = Average[trendPeriod](close)

17 more lines: the entry and exit rules.

Read this first

Known weaknesses

The best run had 152 trades, and some runs had as few as 28, so each sample is limited.
The 2.6% stop is wider than the 2.3% target, so the high win rate (65.79% on the best run) is needed to stay profitable.
Positions are held overnight into Tuesday and Wednesday, so weekend and overnight gaps affect results, and financing is not included in costs.

Indicators used

SMA

How to load it

Copy the code with the copy button above the code block.
In ProRealTime, open a chart of the instrument and timeframe you want to test, then open ProOrder > New trading system and choose "Create with programming".
Paste the code, give the system a name and save it.
Click "Backtest", set your own spread and position size, and run it before you consider trading it live.

Questions

About this strategy

Can Monday Dip Turnaround run in ProOrder?

Yes. It uses a weekday check, an SMA and percent stops. The code is sized in shares at 1 and is not compile checked yet.

Which markets were tested?

All 71 runs across DAX 40, Dow Jones, EUR/USD, FTSE 100, GBP/USD, Nasdaq 100, Nikkei 225, S&P 500 and USD/JPY were profitable. Dow Jones 5 minutes reached a profit factor of 1.77.

What drawdown should I expect at 1 unit?

On S&P 500 5 minutes max drawdown was EUR 441.65. Each trade can lose up to 2.6% of entry price.

Why a 5 minute chart?

The 34 period SMA uses the chart timeframe, so on 5 minutes it reflects Monday price action and gives a precise entry. The weekday rule stays the same on any timeframe.

Bollinger Squeeze

Uses the same indicator.

14.30 PF · 86 trades

Candle Body Sum Intraday

Best run on the same market, S&P 500.

2.86 PF · 124 trades

Morning Range Breakout

A similar profit factor.

1.89 PF · 434 trades

Calendar effects are fun to test together. Join the ProRealAlgos community waitlist.

Copy trading on US indices is available to ProRealAlgos members as spots open.

Past backtest results do not guarantee future results. This is not financial advice. Curated and maintained by ProRealAlgos. ProRealTime™ is a trademark of ProRealTime SAS. prorealalgos.com Stats Docs