Cameco Stock Up 6%: Why CCO Rose on Google’s Nuclear Deal
Cameco stock rose 6.02% to $132.27 on Tuesday, on a day the company itself announced nothing. The move came from a US announcement, Google and Constellation Energy’s long-term nuclear power agreement, and it made Cameco the second-largest contributor to the S&P/TSX Composite’s 0.37% gain, behind only Shopify.
The index closed at 35,649.51, with the S&P 500 up 0.58% to 7,818.93 and the Nasdaq up 0.45% to 27,599.79. The loonie rose 0.34% to 0.7037 US dollars. The TSX is up 1.17% in October after September’s 2.85% fall, its first negative month in six.
A Google power deal reaches a Saskatchewan uranium miner
Constellation Energy’s announcement of the Google nuclear agreement covers a 20-year purchase agreement for 890 MW of new nuclear capacity, from uprates at 11 units Constellation already owns. Cameco is party to none of it, and its latest release is dated September 30. It is the TSX’s most direct nuclear proxy: one of the world’s largest uranium producers, and, per Cameco’s Westinghouse page, the beneficial owner of “a 49% interest in Westinghouse”. Cameco’s uranium price page put September’s industry average spot price at $89.63 per pound and the long-term price at $96.50, from UxC and TradeTech month-end prices.
An 890 MW uprate does not by itself shift global uranium demand. What moved is the read on where AI electricity demand goes next, and Cameco is how a Canadian account expresses it. A 6% gain on an announcement Cameco was not part of is a lesson in what actually moves a stock price, and Cameco anchors the uranium side of our ranking of Canadian mining stocks.
The energy sector’s gain was all uranium
Our own attribution, from iShares XIC holdings and each name’s return, puts the energy sector’s contribution at +6.78 basis points of the index’s 0.37% gain. A basis point is one hundredth of a percentage point. All of it, and more, came from five uranium names: Cameco at 6.40, NexGen Energy 0.62, Energy Fuels 0.30, Athabasca Oil 0.20 and Denison Mines 0.19, for 7.71 between them. The other 31 energy constituents, the oil and gas companies, subtracted 0.93.
Uranium miners sit in the energy sector under the GICS classification the index uses, which is why the sector’s iShares proxy fell 0.77% while the sector itself added to the index. That proxy holds oil and gas and no uranium. Crude gave no instruction either way: NYMEX WTI for November settled at $89.41, eight cents above Monday, on the settlement-window price from Yahoo Finance trade data. Three sectors contributed more than energy did, and all three were ordinary: technology 12.6 basis points, financials 10.1 on a 0.32% sector gain that Royal Bank and TD drove most of, and materials 7.97 as gold rose 0.96% to $4,196.70 USD and carried Agnico Eagle and Barrick.
The bid was in power, not in bond proxies
Utilities was the day’s strongest sector at +1.23%, and the names behind it generate or move electricity: TransAlta rose 4.78%, Brookfield Renewable 3.75%, Capital Power 3.60%, Northland Power 3.20% and Brookfield Infrastructure 2.95%. The regulated names were the quiet ones, Hydro One up 0.65% and Fortis 0.31%. That is a demand trade on electricity rather than a rate trade. Canadian benchmark yields, which publish with a one-day lag, were drifting up into the session: 3.26% on the 2-year, 3.63% on the 5-year and 3.96% on the 10-year on Monday October 5, against Friday’s 3.25%, 3.60% and 3.93%.
Emera, ATCO and Canadian Utilities agree to merge
Emera’s press release on SEC EDGAR describes what the companies call the “largest merger in Canadian history”, roughly $72 billion in enterprise value, closing in the third or fourth quarter of 2027. Emera fell 2.91% to $66.31, the ordinary reaction to an acquirer issuing a large block of its own stock, and Canadian Utilities Class A fell with it, down 1.95% to $50.20. CU is now a tracking stock: at the 0.755 exchange ratio, that is $50.06 of Emera stock on our arithmetic at the closes, within 0.3% of where CU finished. On a deal that does not close until late 2027, the market is treating completion as close to certain and leaving a holder almost nothing for a year of deal risk.
ATCO Class I jumped 9.22% to $81.02, because ATCO holders get 0.865 Emera shares plus stock in a newly spun out “New ATCO”: the Emera component is $57.36 on our arithmetic, leaving ATCO $23.66 above it, roughly what the market puts on the spinco. Roughly, because the release also adjusts that ratio for liabilities Emera assumes and for shares issued to New ATCO.
What is next
- Thursday October 8: Aritzia, down 2.81% on Tuesday, reports earnings.
- Friday October 9: Statistics Canada publishes September’s Labour Force Survey.
- Wednesday October 28: Bank of Canada rate decision, and Alphabet, Google’s parent, reports.
Disclaimer: The content on bestcanadianstocks.ca is for informational and entertainment purposes only and does not constitute financial advice. Past performance is not indicative of future results. Always consult a qualified financial advisor before making investment decisions. Index levels, sector performance and the share price moves for Cameco, Shopify, gold and the loonie are from the October 6, 2026 close. Sector performance is measured with iShares TSX sector ETFs as proxies. Contributions to the index return are our own attribution, built from iShares XIC holdings as of October 5, 2026 and each constituent’s daily return. The oil price is the NYMEX WTI November contract’s settlement-window price, the volume-weighted price of trades from 2:28 to 2:30 p.m. ET, rebuilt from Yahoo Finance trade data. Canadian benchmark bond yields are Bank of Canada Valet series BD.CDN.2YR.DQ.YLD, BD.CDN.5YR.DQ.YLD and BD.CDN.10YR.DQ.YLD, observed October 5, 2026. Uranium prices are the September 2026 industry average spot and long-term prices published by Cameco from UxC and TradeTech month-end prices. Nuclear agreement terms are from Constellation Energy’s October 6, 2026 press release and merger terms from Emera’s October 6, 2026 press release.
