Do I need to add a card to try Pro?

No. The 14-day Pro trial starts the moment you sign up. We won't ask for a card until day 14 — and you can cancel in one click.

What does the free Explorer tier include?

Full 30+ year historical prices, financials, transcripts, news, screener, sector breakdowns, portfolios, and the research notebook. The only thing missing is live quotes and alerts — those are Pro+.

Where does the historical data come from?

From Financial Modeling Prep (FMP), one of the largest US equity datasets. We've ingested the full corpus into a local DuckDB so every query runs fast.

Yes, one-click from your account page. Your subscription stays active until the end of the billing period; after that you drop back to Explorer (free) and keep all your saved screens, watchlists, and notebooks.

Do you offer student or non-profit pricing?

Yes. Email hello@quantcandles.com with proof of enrollment / 501(c)(3) status and we'll move you to a 50% educational tier.

All accounts use Supabase Auth with row-level security. Backtests, watchlists, and notebooks are visible only to you by default; sharing is opt-in.

Quant Candles/Research Terminal · open beta

Make sharper callson every market session.

Screen broad US equity coverage, backtest years of point-in-time history, and unlock live quotes when you're ready. Historical data is free forever.

Start free See the product

Years of point-in-time historyFree forever (Explorer)No card to trial ProCancel anytime

Custom screen

Mega-cap momentum

broad universe

P/E < 30MOM 12M ≥ 15%EV > $10BROE > 18%Float < 5B

NVDA$961.30+3.42%
AAPL$182.45+1.27%
MSFT$412.18+0.51%
META$503.66−0.96%
TSLA$171.04−2.18%
AMZN$186.92+0.83%

Backtest

Momentum · 1995 – 2025

CAGR +18.4%Sharpe 0.96MaxDD −22%

UniversesS&P 500

RebalanceMonthly

Costs5 bps

IC0.062

Decades

Years of history

Point-in-time. Splits & dividends adjusted.

Broad

Tickers covered

US equities and ETFs — coverage expanding.

Indexed

Earnings transcripts

Speaker-tagged, full-text searchable.

Streaming

News parsed

Macro, sector, regulatory, and M&A flow.

Status/Open beta

Built on infrastructure
you can verify.

Quant Candles is open beta. We're collecting feedback from the first wave of users before opening the doors wider.

Next.js 16
DuckDB
Postgres
Supabase
React 19
Tailwind v4
Meilisearch
Server-Sent Events

What we can promise

• Historical research is free forever on the Explorer tier — no card required.
• Pro unlocks live quotes and the API with a 14-day trial, no card up front.
• Your data stays yours — Supabase Auth with row-level security.
• Direct line to the founder. We read every message.

What's inside/Quant Candles

A research terminal — without the Bloomberg bill.

Six products, one terminal, no compromises. Built for working investors.

Screener

Filter the universe in milliseconds.

Filter on fundamentals, technicals, factors, or your own formulas. Save and share filters with the team.

Open screener

WHEREpe < 30ANDmom12m > 15%Sample results

SymbolP/EMOM 12MROEScore

NVDA62.3+184%92.1PASS

META23.1+62%31.4PASS

AAPL27.8+18%171PASS

MSFT34.2+24%39.4PASS

GOOGL21.4+16%29.7PASS

AMZN44.7+11%23.2FAIL

TSLA61.4−12%21.8FAIL

EV > $10BFloat < 5BSector = TechMcap > $50Bsaved 4m ago

Backtest

Test any strategy on real prices.

Real prices, real splits, real dividends. Slice by sector, regime, factor exposure. No black-box math.

Open backtester

Strategy12-1 Momentum · Long top quintile

S&P 5001995 – 2025

CAGR

Live

Sharpe

Live

Max DD

Live

News & transcripts

Earnings calls, parsed and ranked.

Speaker-tone analysis, hedge detection, and quarter-over-quarter language drift. Search by symbol, speaker, or signal.

Open intelligence

Sample · Q2 · NVDACFO section

tone · hedgesurprise · IV

“Sample excerpt — when you load the real corpus, every earnings call is searchable by speaker, theme, and surprise.”

Surprise

Live

Guide Δ

Live

Insider

Live

Sample

price & change

Data & API

REST, streaming, and Parquet — same data.

Drop-in Python and TypeScript clients. Bulk export when you outgrow the API.

View API

$ curl https://api.quantcandles.com/v1/screener

> { "tickers": ["NVDA", "META", ...], "count": 184 }

# streaming prices (SSE)

> GET /stream/prices?symbols=NVDA

p99 latencyLive

uptimeLive

Alpha engine

Pre-built factors. Or compose your own.

Value, momentum, quality, size. Combined with IC-weighting or LASSO.

Open alpha

Illustrative layout · real values populate when you sign in

#01Momentum 12-1
+0.084
#02Value (B/P)
+0.052
#03Quality (ROE)
+0.041
#04Low Volatility
+0.038
#05Size (MCap)
-0.022

The screener, in motion

Type a screen. Watch the answer render.

No more than ten seconds from question to answer. Filters are first-class; results stream as DuckDB pages; export is one keystroke.

Mix fundamentals, technicals, factors, and custom formulas
Save filters; share with your team
Backtest any screen directly from results
One-click export to CSV or Parquet

quantcandles — screener

⌘ K

fmp›screen.run

where market_cap > 5e9
and pe < 20
and rsi(14) > 50, rsi(14) < 70
and ret_12m - ret_12m_sector > 0
order by ev_ebitda desc
limit 25

▍

→ Sample results

Symbol	MCap	P/E	RSI	12m
●AAPL	3.42T	27.4	62.1	+18.4%
●MSFT	3.18T	33.9	55.7	+22.0%
○JNJ	385B	22.1	51.4	+5.6%
●XOM	461B	13.7	64.2	+11.9%
●CVX	298B	12.9	58.8	+8.1%
○PFE	152B	16.2	52.7	+3.2%

{ }

REST + Streaming

OpenAPI documented. SSE for live.

Parquet export

Bulk snapshots by sector & factor.

↗

Webhooks

Alerts, transcripts, factor events.

Python

REST + streaming from any client.

TypeScript

REST + streaming from any client.

Notebooks

Bring your own Jupyter or scripts.

Ships everywhere

Same data, six ways to ship it.

REST and streaming endpoints for the languages your team already uses. Parquet exports when you outgrow the API. Webhooks for alerts.

Use cases

Built for the people who actually use it.

Three workflows, three audiences. Pick yours.

Explorer
$0forever
Everything you need for serious historical research.
- Full historical market data
- Screener, sectors & fundamentals
- Stock profiles & peer comparison
- News & transcripts (as ingested)
- 5 watchlists
Start free
Pro
Most popular
$470/ year
Live quotes, alerts, and the API — for the working investor.
- Everything in Explorer
- Live quotes & streaming prices
- Real-time alerts & watchlists
- API access (5K calls / day)
- 10 backtests / month
Quant
$1430/ year
Factor models, bulk export, and serious backtesting headroom.
- Everything in Pro
- Factor models & alpha engine
- Bulk export to Parquet
- 100 backtests / month
- 25K API calls / day
Institutional
Custom
Dedicated environments, SSO, audit, custom integrations.
- Everything in Quant
- Dedicated support & onboarding
- SSO + audit-grade usage logs
- Custom data ingestion
- SLA
Contact sales

FAQ

Questions, answered.

No. The 14-day Pro trial starts the moment you sign up. We won't ask for a card until day 14 — and you can cancel in one click.

Start free, upgrade when you need it.

No credit card to start. Cancel any time, keep your data.

Create your account

View pricing

Symbol

MCap

P/E

RSI

12m

●AAPL

3.42T

27.4

62.1

+18.4%

●MSFT

3.18T

33.9

55.7

+22.0%

○JNJ

385B

22.1

51.4

+5.6%

●XOM

461B

13.7

64.2

+11.9%

●CVX

298B

12.9

58.8

+8.1%

○PFE

152B

16.2

52.7

+3.2%

Make sharper callson every market session.

Built on infrastructure
you can verify.

A research terminal — without the Bloomberg bill.

Filter the universe in milliseconds.

Test any strategy on real prices.

Earnings calls, parsed and ranked.

REST, streaming, and Parquet — same data.

Pre-built factors. Or compose your own.

Type a screen. Watch the answer render.

Same data, six ways to ship it.

Built for the people who actually use it.

From spreadsheet fatigue to conviction.

Backtest infrastructure that doesn't lie.

Self-serve research at desk scale.

Questions, answered.

Start free, upgrade when you need it.

Make sharper callson every market session.

Built on infrastructure
you can verify.

A research terminal — without the Bloomberg bill.

Filter the universe in milliseconds.

Test any strategy on real prices.

Earnings calls, parsed and ranked.

REST, streaming, and Parquet — same data.

Pre-built factors. Or compose your own.

Type a screen. Watch the answer render.

Same data, six ways to ship it.

Built for the people who actually use it.

From spreadsheet fatigue to conviction.

Backtest infrastructure that doesn't lie.

Self-serve research at desk scale.

Questions, answered.

Start free, upgrade when you need it.

Make sharper callson every market session.

Built on infrastructureyou can verify.

A research terminal — without the Bloomberg bill.

Filter the universe in milliseconds.

Test any strategy on real prices.

Earnings calls, parsed and ranked.

REST, streaming, and Parquet — same data.

Pre-built factors. Or compose your own.

Type a screen. Watch the answer render.

Same data, six ways to ship it.

Built for the people who actually use it.

From spreadsheet fatigue to conviction.

Backtest infrastructure that doesn't lie.

Self-serve research at desk scale.

Questions, answered.

Start free, upgrade when you need it.

Make sharper callson every market session.

Built on infrastructureyou can verify.

A research terminal — without the Bloomberg bill.

Filter the universe in milliseconds.

Test any strategy on real prices.

Earnings calls, parsed and ranked.

REST, streaming, and Parquet — same data.

Pre-built factors. Or compose your own.

Type a screen. Watch the answer render.

Same data, six ways to ship it.

Built for the people who actually use it.

From spreadsheet fatigue to conviction.

Backtest infrastructure that doesn't lie.

Self-serve research at desk scale.

Questions, answered.

Start free, upgrade when you need it.

Built on infrastructure
you can verify.

Built on infrastructure
you can verify.