✦ The data Yahoo Finance and Polygon don't have

The Most Complete
Mutual Fund & ETF API
for Fintech

Access 30,000+ mutual funds, 3,500+ ETFs, and 1,200+ indices — correctly adjusted for dividends and splits. Compare any fund, any ETF, any stock on an apples-to-apples basis. Validated against Bloomberg.

2,000 free credits · No credit card required · Trusted since 1988

40,000+ Securities. 37 Years of History.

The deepest mutual fund coverage of any fintech API — including share classes most providers miss entirely

30,000+
Mutual Funds
3,500+
ETFs
6,000+
Stocks
500+
Closed-End Funds
1,200+
Indexes

What Makes FastTrack Different

Most APIs treat mutual funds as an afterthought. We've been the mutual fund data authority for 35+ years.

Dividends & Splits Handled

We pre-calculate total return with dividend reinvestment so you don't have to. No manual adjustments, no off-by-one errors, no missing distributions. Every data point reflects true investor experience.

Competitors force you to do this math yourself

Hard-to-Find Fund Data

We cover Fidelity Advisor classes, institutional shares, retirement share classes, and obscure fund families that Yahoo Finance misses and Polygon doesn't carry. If it has a ticker, we probably have it.

Including delisted & merged funds (survivorship-bias free)

Apples-to-Apples Comparison

Compare a mutual fund vs. an ETF vs. a stock on the same chart with normalized, dividend-adjusted data. One API call. Same methodology. No data gymnastics required.

Mutual Fund + ETF + Stock in a single request

Mutual Fund Data: FastTrack vs. Everyone Else

Other APIs focus on real-time stocks and crypto. We focus on getting fund data right.

Capability
FastTrack
Polygon
Yahoo Fin.
Mutual fund coverage (30k+)
Limited
Partial
Pre-calculated total return
Fidelity Advisor / Inst. classes
Some
Survivorship-bias-free history
Fund vs ETF vs Stock comparison
Portfolio backtesting & rebalancing
Bloomberg-validated accuracy
Varies

Compare a Mutual Fund, ETF, and Stock in One Call

Normalized, dividend-adjusted data — no manual calculations required

Python
# Compare Fidelity Contrafund vs. SPY vs. AAPL
import requests

response = requests.post(
    'https://api.fasttrack.net/v2/stats/snapshot',
    headers={'Authorization': 'Bearer YOUR_API_KEY'},
    json={
        'assets': [
            'FCNTX',  # Fidelity Contrafund
            'SPY',    # S&P 500 ETF
            'AAPL'    # Apple stock
        ],
        'time_periods': ['1y', '3y', '5y'],
        'benchmark': 'SPY'
    }
)

data = response.json()

Apples-to-Apples Comparison

3-Year total return (dividend-adjusted)

FCNTX Fidelity Contrafund +31.7%
SPY S&P 500 ETF +28.4%
AAPL Apple Inc. +24.1%

FCNTX Risk Metrics

Sharpe Ratio 1.22
Alpha (vs SPY) +2.1%
Beta 0.94
Max Drawdown -14.8%

Built for Serious Investment Platforms

Accurate by Design

Validated against Bloomberg Terminal. Handles dividend adjustments, stock splits, mergers, and delistings automatically.

  • Total return with dividend reinvestment
  • Corporate action adjustments
  • Edge case handling (gaps, halts)

Portfolio Backtesting

Model blended portfolios of mutual funds, ETFs, and stocks with automatic rebalancing and full risk analytics.

  • Static portfolios with target weights
  • Daily to annual rebalancing
  • Multi-asset class support

Production Ready

Fast, reliable infrastructure built for fintech applications at scale.

  • 99.9% uptime SLA
  • <200ms p95 latency
  • Comprehensive documentation

Complete Risk Metrics

All the calculations wealth platforms need — from basic returns to advanced risk-adjusted performance.

  • Sharpe, Sortino, Treynor ratios
  • Alpha, beta, R-squared
  • Drawdown analysis & recovery

Fund Look-Through

Understand what's inside the funds — sector breakdown, top holdings, and portfolio composition analysis.

  • Top holdings by weight
  • Sector & asset class breakdown
  • Attribution analysis

37 Years of History

Data back to 1988. Analyze through dot-com, 2008, COVID, and every market cycle in between.

  • Full history for delisted funds
  • Calendar breakdowns (yearly/quarterly)
  • Custom date ranges

Who Uses FastTrack's Mutual Fund Data

Robo-Advisors

Power fund selection and client portfolios with risk metrics, rebalancing, and performance tracking across mutual funds and ETFs.

RIA Technology

White-label fund analytics for client reporting, proposal generation, and investment policy monitoring across all share classes.

Fund Selection Platforms

Build screeners that compare mutual funds, ETFs, and index funds side-by-side with normalized total return data.

401(k) & Retirement Tools

Analyze retirement fund lineups, compare share classes, and model long-term outcomes with historically accurate data.

Quantitative Research

Survivorship-bias-free data for academic research, factor analysis, and strategy backtesting across the full fund universe.

Wealth Management Apps

Add portfolio insights and fund comparisons to consumer-facing wealth apps. One API for all asset types.

35+
Years of Fund Data
Trusted since 1988 by portfolio managers and RIAs
$150B+
Assets Under Management
Trusted by RIAs managing substantial portfolios
98%
Annual Retention Rate
Customers stay with us for decades — not months

Simple, Transparent Pricing

Start building with a free key. Upgrade when you're ready to ship.

Developer

$199/mo
For building MVPs & prototypes
  • Internal Use Only (1 Person)
  • 100,000 credits/month
  • All assets + Portfolio models
  • MCP protocol support (beta)
  • 100 requests/minute
Get Started

Enterprise

Custom
For commercial apps & platforms
  • Commercial License
  • Site-Wide Internal Access
  • High-Volume Rate Limits
  • SLA & Custom Contracts
  • Dedicated Account Manager
Contact Sales

Building a customer-facing product? Contact us for a Commercial License.

"We evaluated 5 financial APIs before choosing FastTrack. None of them had proper mutual fund data — let alone dividend-adjusted total returns across share classes. FastTrack saved us 3 months of data engineering and gave us fund coverage our competitors can't match."

Alex Chen

CTO, Wealth Tech Startup

Frequently Asked Questions

What mutual fund data do you cover?

We cover 30,000+ mutual funds including hard-to-find share classes like Fidelity Advisor, institutional, and retirement classes. We also retain history for merged and delisted funds, giving you survivorship-bias-free data.

How is "adjusted close" handled?

All prices reflect total return with dividends reinvested and splits applied. You get true investor experience from day one — no manual adjustments needed. This is validated against Bloomberg Terminal for accuracy.

Can I compare a mutual fund to an ETF?

Yes — this is a core use case. Send any mix of mutual funds, ETFs, stocks, and indexes in a single API call. We normalize everything so your comparisons are apples-to-apples.

How is the credit system calculated?

Credits = Assets × Periods × Complexity. A simple fund lookup for 1 year ≈ 1 credit. A portfolio model with rebalancing ≈ 2-3 credits. Use our credit estimator in the docs.

Do you have survivorship-bias-free data?

Yes. We retain full price history for funds that have been merged, liquidated, or delisted. This is critical for academic research and accurate backtesting — most providers silently drop these.

What about portfolio backtesting?

Build blended portfolios of any asset type with automatic rebalancing (daily through annual). Get Sharpe ratio, alpha, beta, drawdown analysis, and more — all in one API call.

The Mutual Fund Data API You've Been Looking For

Get your API key in 2 minutes. 2,000 free credits. No credit card required.

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