Anonymised, illustrative composite. The buyer's third bolt-on in one metropolitan area was trivial nationally and decisive locally, because the concentration test is applied in any relevant market rather than to the deal.
At a glance
A private-equity-backed environmental-services platform was building a regional position in front-end commercial waste collection — the bin business serving restaurants, retail and small industrial customers. It had bought a family hauler in month one, a second in month fourteen, and had a third under exclusivity at $23,400,000. The sequencing logic is set out in sequencing add-on acquisitions over three years and the bolt-on acquisition glossary entry.
Nationally the platform was immaterial: under 2% of Canadian commercial collection revenue, with no presence in five provinces. The deal was well below the transaction-size amount for pre-merger notification and no filing was required. Everyone in the process treated the competition question as closed on that basis.
Not being notifiable and not being reviewable are different things. Part IX governs whether you must tell the Commissioner; s.92 governs whether the Tribunal can order something, and it has no threshold at all — the same point from the other direction in the national security review that has no threshold.
The substantive problem was that route density is a local business. A commercial hauler competes for the bin at the back of a restaurant against whoever else can put a truck down that lane on a Tuesday. The relevant market was one metropolitan area, and in that area the deal was the difference between five credible haulers and four, with the largest two becoming one.
Local shares in front-end commercial collection, on the parties' advisers' estimates: platform 26%, target 12%, three others at 22%, 18% and 12%, and two small operators at 5% each. The concentration index is the sum of the squares.
Before the transaction: 26² + 12² + 22² + 18² + 12² + 5² + 5² = 676 + 144 + 484 + 324 + 144 + 25 + 25 = 1,822. After, with the platform and target combined at 38%: 38² + 22² + 18² + 12² + 5² + 5² = 1,444 + 484 + 324 + 144 + 25 + 25 = 2,446. The increase is 624, which is also what the shortcut gives — twice the product of the merging shares, 2 × 26 × 12.
Against the statutory figures: the increase of 624 exceeds 100; the index of 2,446 exceeds 1,800; the combined share of 38% exceeds 30%. Two independent limbs are met where one would do.
s.92(3) defines when a merger “results or is likely to result in a significant increase in concentration or market share”. It does so “if, in any relevant market, as a result of the merger or proposed merger” both (a) “the concentration index increases or is likely to increase by more than 100” and (b) either “the concentration index is or is likely to be more than 1,800” or “the market share of the parties to the merger or proposed merger is or is likely to be more than 30%”. s.92(4) defines the term: “concentration index means, in any relevant market, the sum of the squares of the market shares of the suppliers or customers”.
The consequence is in s.92(2), and it is a burden rule rather than a test of harm. Where the Tribunal makes that finding, it “shall also find that the merger or proposed merger prevents or lessens, or is likely to prevent or lessen, competition substantially, unless the contrary is proved on a balance of probabilities by the parties to the merger or proposed merger”. The Commissioner proves concentration; the parties must then disprove the substantial lessening. Nothing else in Canadian merger control moves the onus.
The unit is the phrase “in any relevant market” — not the deal, not the buyer's national footprint, not the price. A $23,400,000 transaction can satisfy s.92(3) where a $2,000,000,000 one does not, if the small deal is concentrated and the large one is spread across many markets. The presumption bites on market definition.
This is recent, and the published guidance has not caught up. The Competition Bureau's Merger Enforcement Guidelines, dated October 6, 2011 and still the operative published guidance, state at paragraph 3.2 that “section 92(2) of the Act precludes the Tribunal from concluding that a merger is likely to prevent or lessen competition substantially solely on the basis of evidence of concentration or market share”. That was an accurate statement of the former subsection. The subsection now in force says close to the opposite, and the Bureau's own banner records that “Following recent changes to the Competition Act, the Competition Bureau is reviewing its guidelines and will update them to ensure clarity and transparency for Canadians.” A diligence memo drafted from the guidelines rather than from the statute reaches the wrong answer on the single question that matters most: who has to prove what.
The platform did not abandon the acquisition, but it stopped treating clearance as a formality. It commissioned a proper market-definition analysis instead of relying on adviser estimates, and did the arithmetic before signing. That analysis supported a narrower geographic market than assumed — two collection zones rather than the whole metropolitan area — worse in one zone and better in the other.
The deal was restructured to exclude the target's routes in the zone where the overlap was heaviest, about 19% of its revenue, sold on to a fourth hauler; price fell to $19,100,000. The platform also made a voluntary approach to the Bureau — which, as a deal nobody filed and a three-year tail sets out, does more than buy goodwill: it shortens the challenge window from three years to one. See also where roll-ups most often go wrong.
Closing the original transaction would have left the platform holding a 38% local position that the Commissioner could challenge under s.92 for three years, with the onus on the platform throughout. Under s.92(1)(e) the Tribunal may, on a completed merger, order a party to dissolve it or “to dispose of assets or shares designated by the Tribunal in such manner as the Tribunal directs” — and by then the routes would have been merged, the depot consolidated and the trucks re-liveried, so the assets designated for disposal would not be the assets that were bought.
The realistic outcome is not dissolution but a negotiated divestiture on the Commissioner's timetable, which is a materially worse sale than a pre-signing carve-out to a chosen buyer. What that costs is set out in two branches divested to a buyer the Commissioner approved.
The tell was the sentence “we're too small to be a competition problem” in an investment committee paper, next to a slide showing the platform as the local number one. Both were true and only one was relevant: size triggers a filing; concentration in a relevant market triggers the presumption.
The practical version is a two-minute test. Write down the shares in the narrowest market you actually compete in, square them, add them up, then do it again with the merging parties combined. If the increase clears 100 and either the total clears 1,800 or the combined share clears 30%, you are the one who has to prove the deal is fine.
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