To find the week's top resource stocks, screen a fixed universe (TSX Energy and Basic Materials names above C$1 billion in market cap), compare Friday close to Friday close, rank "most traded" by dollar volume, and measure relative volume against a multi-week average, after removing preferred shares and thinly traded lines. Skip the cleanup and the leaderboard fills with junk. In the week ended October 16, 2026, a raw FMP screen returned 156 TSX lines, and three preferred shares landed in its top 10 by relative volume. Cleaned up, it was 146 common-share lines, and the results are in our week's top TSX resource stocks roundup.
Here is the method, filter by filter, using that week's real numbers.
Step 1: Define the universe before you look at a single price
Decide what counts as a "resource stock" first, then never change it to suit the week. Our version: TSX-listed, tagged Energy or Basic Materials, market cap above C$1 billion. The cap floor matters. Below it, more names trade thinly and weekly percentage moves get noisier.
Three cautions:
- Sector labels belong to the data vendor. FMP files uranium miners such as Cameco ($CCO.TO) under Energy. That week, uranium's five lines had a median of -8.2%, which pulled the Energy median down to +3.6% from +3.8% without them.
- One line per issuer. Teck has two common share classes on the TSX. The Class A line traded about C$1.0 million that week, against about C$296 million for Class B. Keep the liquid one so Teck doesn't count twice in your medians.
- Drop preferred shares. Symbols such as $ENB-PFK.TO, $TRP-PD.TO and $PPL-PC.TO are preferreds, which are income instruments priced off rates, not oil or copper. The screener returned nine of them.
Step 2: Fix the window, and watch for holidays
Use closing prices only: last Friday's close to this Friday's close. Never mix in an intraday quote.
Then count the sessions. The TSX was closed Monday, October 12, 2026 for Thanksgiving, per its trading calendar, so the week had four Toronto sessions. New York was open, so U.S. lines had five. That matters for volume. Divide a four-day total by a five-day "normal week" and every stock looks 20% quieter than it was. Work in average daily volume instead.
Worked example: Enbridge ($ENB.TO) traded 56.9 million shares from October 13 to 16, or 14.2 million a day. Its average over the 19 sessions from September 15 to October 9 was 6.08 million. That is 2.34x normal. Divide by five days by mistake and you get 1.87x.
Step 3: Rank "most traded" by dollar volume, not shares
Share volume rewards cheap stocks. A C$12 stock that trades 27 million shares looks busier than a C$190 stock that trades 4 million, even if far less money changed hands. Multiply each day's close by its volume and sum the days in C$:
| Stock | Oct 16 close | Shares, Oct 13-16 | C$ dollar volume | Rank by shares / by C$ |
|---|---|---|---|---|
| Athabasca Oil ($ATH.TO) | C$12.15 | 27.7M | C$337.3M | 4th / 18th |
| Imperial Oil ($IMO.TO) | C$189.48 | 4.3M | C$801.9M | 45th / 6th |
Athabasca adds a second lesson: check for pending deals. Cenovus agreed on October 5, 2026 to acquire it for $12.00 a share, payable in cash and Cenovus stock (0.264 of a Cenovus share as the stock option), per Cenovus's release. A takeover target trades on deal terms, so heavy volume there says little about the sector. Arithmetic: 0.264 times Cenovus's C$46.67 close is C$12.32, and Athabasca closed at C$12.15 on October 16, 2026, between the two forms of consideration. (More on the deal: Cenovus-Athabasca coverage.)
Step 4: Use relative volume, with a liquidity floor
Relative volume, this week's average daily volume divided by a baseline average, flags stocks where something unusual is happening. Unfiltered, it mostly flags tiny trading. FireFly Metals ($FFM.TO) topped the raw list at 3.35x on about C$5.3 million for the week. Several preferred lines made the raw top 10 at about 2x to 3x on roughly C$2 million or less.
The fix is a dollar-volume floor. In this screen the median line traded about C$56 million that week, and 47 of 146 traded under C$20 million. With a C$20 million floor, the top three became NexGen Energy ($NXE.TO) at 2.47x on C$186.7 million, Enbridge at 2.34x and CES Energy Solutions ($CEU.TO) at 2.27x. Those are names where the extra volume involves real money.
Thin trading is also the low-float trap in disguise. If few shares are available, a handful of trades can produce a 15% "move". Our data pull had no float figures, so dollar volume is the guardrail.
C$ vs. US$: interlisted lines need one currency
Many Canadian resource companies also trade in New York. Pick one line per company, and never mix a Toronto price with a New York one in the same ranking. Cenovus shows why:
| Line | Oct 9 close | Oct 16 close | Week |
|---|---|---|---|
| $CVE.TO (Toronto, C$) | C$44.75 | C$46.67 | +4.3% |
| $CVE (New York, US$) | US$31.39 | US$32.94 | +4.9% |
| USD/CAD | 1.4253 | 1.4138 | -0.8% |
Same company, two different weekly returns. The gap is mostly currency: the Canadian dollar firmed against the U.S. dollar, which lifts a C$ asset's value in US$ terms. Convert the Toronto closes at FMP's USD/CAD rate and you get about +5.1%, close to the New York figure. The rest is timing, because FX rates and stock closes are not stamped at the same moment. The New York line also traded on October 12, when Toronto was shut.
Step 5: Cross-check against the commodity tape
A sector move with no commodity behind it deserves a second look. That week, FMP's WTI crude series rose 10.4% to US$101.41 a barrel at the October 16, 2026 close. The Canadian energy ETF $XEG.TO gained 6.3%, and the median energy line gained 3.6%. That's consistent. Gold slipped 0.8% to US$4,181.1 an ounce while the median gold-tagged stock fell 3.3%, which is normal leverage. Our pull had no uranium price series, so the uranium slide stayed unexplained in our roundup rather than getting a guessed cause.
One more check: if a mover’s volume looks strange, verify it against a second data feed before building a story on it.
The weekly checklist
- Fixed universe: exchange, sectors, market-cap floor.
- Remove preferreds, warrants, and duplicate share classes.
- Friday close to Friday close; count the sessions.
- Dollar volume for "most traded".
- Relative volume on daily averages, with a C$ floor.
- One currency per ranking; flag interlisted lines.
- Flag pending takeover targets.
- Check each sector against its commodity and ETF.
- Report causes only when a dated company release supports them.
For the results each week, start with our Markets section or the Traders On Trend homepage.
Bull/Bear Verdict
Bull Case: A screen built this way is fast, repeatable and hard to fool. With dollar-volume and relative-volume filters it surfaced liquid movers such as Vermilion and Enbridge, not preferreds or C$1 million trading accidents.
Bear Case: A screen describes; it doesn't explain. Vendor sector labels, market-cap values and volume feeds all carry errors, and a weekly leaderboard says nothing about what the next week holds.
FAQ
What market-cap cutoff should a resource stock screen use?
There is no official cutoff. C$1 billion keeps the TSX list manageable, and returned 146 common-share lines for the week ended October 16, 2026. Lower floors pull in more thinly traded names.
Why use dollar volume instead of share volume?
Share volume favors low-priced stocks. Athabasca ranked 4th by shares but 18th by C$ traded that week, while Imperial Oil ranked 45th by shares and 6th by C$.
How do holidays change the screen?
They cut the number of sessions. Use average daily volume rather than weekly totals, and remember U.S. and Canadian holidays differ, so interlisted lines can have different session counts.
Should preferred shares be in a "top resource stocks" list?
No. They trade like income securities and can top relative-volume lists on tiny trading, as three did in the raw screen for the week ended October 16, 2026.