How to Build a Simple Stock Brief Template (Bull / Bear / Watch)

A stock brief is one page that forces you to say what you believe about a company, what would prove you wrong, and what you are waiting for. It is the most useful habit a DIY investor can build, because it turns research into decisions you can audit later.

Educational only — not financial advice. The template below is a thinking tool, not a recommendation engine.

Direct answer

Every brief has seven blocks: snapshot, business model, bull case, bear case, watch list, kill criteria, and valuation range. Keep it to one page, date it, cite sources, and update it after each quarterly report. If you can’t fill the bear case honestly, you don’t understand the stock yet.

The seven blocks

Copy-ready template

Block	Prompt	Length
Snapshot	Ticker, exchange, date, price, market cap, sector, your position (none / starter / full)	1 line
Business model	How it makes money; recurring vs cyclical; top 2 drivers	2–3 sentences
Bull case	What has to be true for this to work from today’s price?	3 bullets
Bear case	What could go wrong, or what is the market already over-paying for?	3 bullets
Watch	KPIs and dated catalysts that decide the next update	3–5 bullets
Kill criteria	Specific, observable events that force an exit or rewrite	2–3 bullets
Valuation range	Low / base / high, using sector-appropriate metrics	1 small table
Sources	Filings and dates used	links

Writing each block well

Bull and bear: symmetrical, specific, falsifiable

Weak	Strong
“Great management”	“Has hit its leverage target three years in a row (per MD&A)”
“Rates might fall”	“Each 25 bp cut lowers interest expense by roughly X per the MD&A sensitivity”
“Competition”	“New entrant pricing 10–15% lower in segment Y, per Q2 call”
“Undervalued”	“Trades below peer median EV/EBITDA despite similar growth and lower leverage”

Watch list: dated and measurable

Tie each item to a filing or event: next quarterly report, investor day, regulatory decision, project start-up, debt maturity. Pull them from the MD&A and the earnings call.

Kill criteria: decided before you buy

Examples of the form (fill with your own numbers):

• Dividend not covered by trailing-12-month free cash flow for two consecutive quarters
• Net debt/EBITDA above the company’s own stated ceiling with no plan
• Core KPI (e.g. same-store sales, production per share) negative for three quarters
• Management abandons a stated capital-allocation priority without explanation

Valuation range

Scenario	Key assumption	Metric used	Implied value range
Low	e.g. margins revert to 5-year low	EV/EBITDA at peer low end
Base	e.g. guidance met	Peer-median multiple
High	e.g. growth project delivers on time	Upper-quartile multiple

Use metrics that fit the sector: P/E, EV/EBITDA, P/FCF, or P/B and ROE for banks. A simple DCF can sanity-check the base case.

The update loop

When	What to update	Time
Quarterly results	Snapshot, watch items, kill check	30–45 min
Annual report + AIF	Business model, bear case, valuation range	1–2 hours
Price move > 20% with no news	Valuation range only — is the thesis priced?	15 min
Kill criterion triggered	Full rewrite or exit decision	as needed

See it in practice

Every StockSummarizer stock summary ends with a bull / bear / watch framing — for example the TD brief or the Enbridge brief. Treat them as learning objects: rewrite the bear case in your own words and see if you agree.

The brief is step 5 of how to research a TSX stock from scratch; sizing comes next in position sizing for DIY stock pickers.

Go deeper

A printable version of this template will ship with the future Stock Research Playbook ebook. The free version above is complete.

Media credits

• Hero: “Toronto-Dominion Centre, Toronto, Ontario (21653659479).jpg” by Ken Lund, CC BY-SA 2.0, via Wikimedia Commons. Cropped and resized to 1280×720. Real photograph, not AI-generated.

By Andrew · stocksummarizer.com