Mainland buyers outspent Baidu's own buyback desk 13 to 1 in September
A trading gate that opened on September 7 let mainland investors put nearly HK$6 billion into Baidu in the month its ADS printed a 52-week low of $85.83. On the other side: a securities class action with a November 13 deadline and the street's only Underweight rating.
Vincent Jiang · 3 min read
The gate opened, and the bid arrived in week one
Baidu's Hong Kong listing turned dual-primary on September 1, with no new shares issued 7, and the stock entered Shanghai and Shenzhen Stock Connect on September 7 8. The first month of that access brought HK$5.996 billion of net mainland southbound buying in Baidu, second only to Zhipu's HK$7.884 billion among Hong Kong names 1. That is Futu's count, published September 30, and it is the only public count of September's flows; no second outlet has run it. The channel was buying the whole tape down: southbound flows ran net positive on all but two September trading days while the Hang Seng Tech Index fell 7.92% 1.
Thirteen mainland dollars for every company dollar
Baidu's own desk bought about HK$450 million of Hong Kong stock across nine sessions from September 7, and the Hong Kong line still fell 8.92% over the streak 4. A 6-K filed September 30 carries the September 29 disclosure return with the buyback still running 5, yet issued Class A shares stand unchanged at 2.21 billion 2. About thirteen mainland dollars for every company dollar, and the share count has not moved.
Southbound money outspent Baidu's own buyback desk about 13 to 1 in September
Data
| Value | |
|---|---|
| Zhipu, southbound | HK$7.9B |
| Baidu, southbound | HK$6B |
| Baidu's own HK buyback | HK$0.45B |
The other side of the trade is a courtroom
The class action notice reprinted October 3 gives buyers of Baidu securities between November 18, 2025, and August 17, 2026, until November 13 to seek lead-plaintiff status, on the claim that Baidu overstated its AI business's ability to offset falling online marketing revenue 3. The number underneath is Core AI-powered Business revenue of RMB12.5 billion in Q2, up 25% year over year and down 8% quarter over quarter, while online marketing fell 19% 46. No class has been certified and nothing is proven 3.
Wall Street voted before the gate opened
Morgan Stanley cut the stock to Underweight on August 19, the first major institutional sell designation, taking its target from $130 to $80 6. The ADS touched a 52-week low of $85.83 on September 30 and last traded at $86.71 2. Consensus still says Hold, at $151.53 2. In price terms the choice is stark: the consensus target sits roughly 75% above the tape and Morgan Stanley's about 8% below it, and both camps are reading the same Q2 table 2.
Only Morgan Stanley's target sits below the tape
Data
| Price target (USD) | |
|---|---|
| JPMorgan (17 Jul) | $205 |
| BofA (14 Jul) | $165 |
| Consensus | $151.53 |
| Susquehanna (28 Aug) | $105 |
| Morgan Stanley (19 Aug) | $80 |
Two Novembers priced into one stock
The lead-plaintiff deadline is November 13, market-data calendars put the results print near November 17, and Moody's carries a negative outlook from September 24 4. The same 8% sequential contraction is a floor to one camp and Exhibit A to the other.
What no flow count can separate is conviction from plumbing. The dual-primary conversion was pitched as a way to reach mainland institutions underweight the stock 6, and comparable Chinese entrants to Stock Connect have historically seen southbound shareholding rise 15-20% within 30 days of inclusion 8. Inflows of that size arrive because the channel opened, whatever the buyer believes about a RMB12.5 billion engine that shrank between quarters. The next southbound count will say which camp is still paying.
Deepdive
AI-generated from this story and its cited sources. Not investment advice.
