Compared honestly
Fidelity backtesting tools and an alternative that tests plain-English ideas
Fidelity does have a backtester, its web-based Strategy Testing tool, but it works by configuring prebuilt strategy templates, its help page still applies Fidelity's old $4.95 commission by default, and Fidelity Trader+, the platform replacing Active Trader Pro, lists no backtesting. AgentTrading tests the same idea from one plain-English sentence and hands back an honest verdict.
- 1 THESIS
- 2 EVIDENCE
- 3 BACKTEST
- 4 RISK
- 5 VERDICT
02 EVIDENCE · FUNDAMENTALS
04 RISK · IN PLAIN ENGLISH
Sample scenarios, not a live backtest of what you typed. Past performance does not guarantee future results. Educational analysis only, not financial advice.
Credit where due - what Fidelity does well
- ✓ Full commission-free brokerage with deep research and the Active Trader Pro platform
- ✓ A genuine web-based Strategy Testing backtester with prebuilt, customizable strategy templates
- ✓ Single-symbol and multi-symbol testing that can model dividends, interest, and commissions
The honest comparison
Fidelity is a genuinely strong broker, and unlike most of its peers it actually ships a backtester. The web-based Strategy Testing tool lets you take prebuilt technical strategies, organized into families like Trend Following, Counter Trend, and Breakout, tweak their parameters, and see how they would have behaved on historical data, either on a single symbol or across a group of stocks with dividends, interest, and commissions modeled in. It is free with an account and it is real backtesting, so the honest comparison here is not about absence, it is about approach. Fidelity starts from a menu of technical templates you configure; AgentTrading starts from a sentence. You type the thesis in plain English, such as "hold SPY above its 200-day moving average", and it restates the rule so you can see exactly what will run, backtests it on 20+ years of split- and dividend-adjusted daily data with a 0.1% cost per trade assumed by default, explains the risks in words, and stamps a one-line verdict: HELD UP, MIXED, or UNDERPERFORMED, even when the idea loses to buy-and-hold. Two other things are worth knowing. Strategy Testing is a separate web tool, not part of the desktop platform: Active Trader Pro has no backtesting engine of its own, and Fidelity says it is being phased out in favor of Fidelity Trader+, whose published feature list covers charting, research, Level 2 and streaming data but not strategy testing. Fidelity's Strategy Testing help page also reads like a legacy tool: it says simulated commissions "reflect Fidelity's pricing of $4.95 per trade for each side of the transaction" and are on by default, years after Fidelity moved to $0 online stock commissions, so switch that setting off or your results will understate a cheap strategy. And Fidelity is a broker, so the same login that tests a strategy can place the trade. AgentTrading is not a broker and executes nothing, by design: it answers the historical question and stops there. Keep the Fidelity account for execution and research, vet the specific idea on AgentTrading from $49 per month, then place the trade wherever you already trade. It is educational analysis only, never advice, and the decision stays yours.
Past performance does not guarantee future results. For educational and informational purposes only. Not financial advice. Consult a licensed advisor.
SIDE BY SIDE
AgentTrading vs Fidelity
| What matters | AgentTrading | Fidelity |
|---|---|---|
| Backtest a stock strategy on historical data | Yes | Yes, the Strategy Testing tool |
| Plain-English thesis to backtest, no template setup | Yes | Configure prebuilt strategy templates |
| One honest verdict: HELD UP, MIXED, or UNDERPERFORMED | Yes | No |
| Backtesting built into the main desktop platform | Runs in any browser | Separate web tool, not Active Trader Pro |
| Places live trades, brokerage account | Not a broker, by design | Yes |
| Deep research, screeners, and full brokerage suite | Focused research bench | Yes |
| Price | From $49/mo | Free with a Fidelity account |
Comparison reflects general product positioning and public pricing, offered in good faith. Verify current capabilities with each vendor.
On the same bench
The one-sentence-to-backtest workflow is laid out on backtesting software, and the trading strategy tester shows how a plain sentence becomes the rule card the test runs on. For the full walkthrough of what a real test needs, see how to backtest a trading strategy, and does Fidelity have backtesting breaks down each Fidelity tool. Plans start at $49 a month.
QUESTIONS - ASKED AND ANSWERED
Common questions about Fidelity alternatives
Does Fidelity have backtesting?
Yes. Fidelity offers a free web-based Strategy Testing tool that runs prebuilt, customizable technical strategies across historical data and reports hypothetical performance, on a single symbol or a group of stocks. It is a real backtester, which is unusual for a broker. The main limits are that it starts from technical templates you configure rather than a plain-English idea, and it is a separate web tool from the Active Trader Pro platform.
Can you backtest a strategy on Fidelity?
Yes, within its framework. Fidelity Strategy Testing lets you pick a prebuilt strategy, adjust its parameters, and test it on historical prices for one stock or a basket. What it does not do is take a rule you can state in a sentence and run it as-is. If your idea does not map onto one of the technical templates, a plain-English bench like AgentTrading tests the exact rule you wrote, then you can place the trade at Fidelity.
Does Active Trader Pro have backtesting?
No. Active Trader Pro, Fidelity's downloadable active-trading platform, has advanced charting, alerts, and order tools, but no backtesting engine, market replay, or paper trading built in. Fidelity's backtesting lives in the separate web-based Strategy Testing tool. So the answer depends on which Fidelity product you mean: the web tool backtests, Active Trader Pro does not.
Does Fidelity Trader+ have backtesting?
Not that Fidelity lists. Fidelity Trader+ is the free desktop and web platform replacing Active Trader Pro, which Fidelity says is being phased out, and its published features cover charting, research, Level 2 quotes, directed trading and streaming data. Backtesting at Fidelity still means the separate web-based Strategy Testing tool with its prebuilt templates.
Why do Fidelity Strategy Testing results look worse than expected?
Check the commission setting. Fidelity's Strategy Testing help says simulated commissions reflect $4.95 per trade on each side and are on by default, while Fidelity charges $0 for online US stock trades today. On a rule that trades often, that charge alone can turn a winning backtest into a losing one, so switch it off or set a realistic cost.
How is Fidelity different from AgentTrading?
Fidelity is a broker whose Strategy Testing tool backtests prebuilt technical templates you configure with parameters. AgentTrading is a research bench that executes nothing; you type one thesis in plain English, it restates the rule, backtests it on 20+ years of adjusted data, prints every assumption, and stamps an honest verdict including UNDERPERFORMED. One tests from a template menu inside a broker, the other tests the exact sentence you wrote.
Is Fidelity Strategy Testing free?
Yes. The web-based Strategy Testing tool is free to use with a Fidelity brokerage account, and it is provided for educational purposes. Free does not mean unlimited, though: you are testing prebuilt strategies you customize, and results depend on the market conditions in the window you chose. For an idea that does not fit those templates, a plain-English bench answers the same historical question from a sentence.
Past performance does not guarantee future results. For educational and informational purposes only. Not financial advice. Consult a licensed advisor.
Other comparisons
All alternativesTest the next idea before you pay for another month
Type a thesis or a ticker. AgentTrading restates the rule, runs 20+ years of adjusted history, explains the risks, and stamps an honest verdict. Plans from $49 per month.
Past performance does not guarantee future results. For educational and informational purposes only. Not financial advice. Consult a licensed advisor.