Where your investment story lives, grows, and gets tested against reality.
Powered by Sigma, your in-app assistant and daily Sigma Monitor digest. Not investment advice.
START YOUR CONVICTION JOURNAL →7-day free trial with the full app, including Sigma. Then $15/month or $99/year.
NVDA
NVIDIA Corporation
NVIDIA's dominance in AI accelerator hardware is structural, not cyclical. Blackwell adoption across hyperscalers validates the thesis...
SIGMA DEMO
SIGMA PREVIEW
Example 1/3
Sigma Monitor clarity
“You remember you bought it. You don't remember why.”
“Your thesis is in a notebook. A Google Doc. A memory.”
SYNESI changes that.
WHAT SYNESI DOES
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Log the thesis behind every position in under 60 seconds. Ticker, assumptions, exit criteria, confidence. Structured for when it matters most.
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Sigma surfaces conflicts between what you believed and what's actually happening. When your stock moves 5%+, SYNESI asks: does this change anything?
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Every update, status change, and AI analysis is logged. A full audit trail of your conviction per holding, months and years of your own thinking, reviewable.
Σ
Sigma is SYNESI's AI layer. Ask the in-app assistant for guidance on convictions, alerts, and workflows, grounded in your SYNESI context when available. Sigma Monitor runs a daily digest of your convictions and alert pressure, with on-demand refresh, headline, risk read, and suggested next steps. Sigma does not give buy, sell, or hold advice.
LIVE NOW, NO WAITLIST
THESIS DASHBOARD
AI THESIS CHALLENGE
BIAS SCAN
“Your thesis leans heavily on management execution but doesn't account for the competitive response from AMD and custom silicon efforts at major hyperscalers.”
STRESS TEST
“If hyperscaler capex declines 15%+ for two consecutive quarters, your core growth assumption breaks.”
MONITORING PLAN
“Track quarterly data center revenue growth and gross margin trends. Review thesis after each earnings call.”
SIGMA MONITOR
Daily digest · refreshed now
Conviction pulse
Two positions saw elevated alert activity; one thesis assumption is worth revisiting this week. No buy/sell guidance, just a structured read on drift and pressure.
Start tracking today, your first thesis takes under 60 seconds.
Built for thesis-driven investors who document their reasoning and review it as markets evolve.
You hold 5–20 positions and know exactly why you own each one. You want a system that keeps those reasons sharp as time passes.
Thesis-driven investor · Conviction tracking · Position discipline
You cover multiple companies and need structured thesis documentation with falsifiable assumptions and audit trails.
Research analyst · Due diligence · Thesis management
You know cognitive bias is your biggest risk. You want a tool that challenges your thinking before the market does.
Behavioral finance · Investment journal · Decision review
SIMPLE PRICING
Includes Sigma assistant + Sigma Monitor in every plan. SYNESI is built for serious investors who want an accountable process.
PRO MONTHLY
$15
per month
PRO ANNUAL
$99
per year · ~$8.25/month
SAVE ~45% VS MONTHLY
SYNESI is not a financial advisor and does not provide investment advice.
Everything you need to know about SYNESI, Sigma, and conviction tracking.