BZUN insider buy · signal #81

Chief Strategy Officer Junhua Wu bought $38k of Baozun Inc. (BZUN), filed Sep 17, 2026, 06:09 New York time.

Logged after the fact Added when the track record started, after the fact: it wasn't published in advance.

Entry price$2.78close of Sep 17, 2026

After 1 day, after costs+2.4%+2.5% vs benchmark

After 1 week, after costs+5.7%+5.1% vs benchmark

After 1 month, after costs+37.8%+37.3% vs benchmark

Results

After	Price move	After costs	S&P 500	Against it
1 day	+2.5%	+2.4%	−0.1%	+2.5%
1 week	+5.8%	+5.7%	+0.6%	+5.1%
1 month	+37.9%	+37.8%	+0.5%	+37.3%

Costs: 10 basis points for buying and selling (0.10%), taken off every result. The benchmark is S&P 500 (SPY), measured from the same entry close to the same later closes. Bad calls stay in the record like every other, and a result that can't be measured counts against the Truth Scores as a miss.

The record

Each entry was written to InsiderBeacon's audit log when it happened; the prices in it are sealed, a commitment standing in for them wherever the log is passed on, and shown here with the salt that opens the seal. Every check below passes.

#336 · PublishedOct 17, 2026, 19:28 UTC
Insider buy of BZUN, $38k, score 53. Costs counted: 10.0 bps a round trip. Added when the track record started, after the fact: it wasn't published in advance.
11db7510d2a1a3f15be4aa02659ac5fba6e74c5d3e95a6e7d961306a5bf503c1 ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-17
#337 · EntryOct 17, 2026, 19:28 UTC
Entry price $2.78.
95816da93696e42c6ae212eb479931e1274ab7cf9b275024f4c5ec50b3ac5f0a ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-17 · ✓ sealed prices match their commitment Sealed: 169899db1ee5fe941af97224b4173795f21938a262331dbe65f9983d032d9568 · salt 58ac47c4ea7ed63201ec85ebdfaf227f · values {"px":2.78}
#338 · ResultOct 17, 2026, 19:28 UTC
1 day: price +2.5%, after costs +2.4%; no benchmark
56d541202525233d9a3e823331be57890e7f1781ab8c2cdcd76961975fb21ad5 ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-17 · ✓ sealed prices match their commitment Sealed: 8617c5dce6c38a663658fdeb653e1466e48e224fea0859f894ecd1549608af39 · salt 3620d61fdbc6c5ec7d7019d3c6b879f5 · values {"bench":null,"excess":null,"gross":0.02517986,"net":0.02417986}
#339 · ResultOct 17, 2026, 19:28 UTC
1 week: price +5.8%, after costs +5.7%; no benchmark
a51a05231ace52391912140001f35c26fcaf7027b820e96a62367d8a53a48937 ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-17 · ✓ sealed prices match their commitment Sealed: c06b3105ac89ff712fd9c7d9e1653b1608a846056e4082f6758c47fd02041ff2 · salt bdf8e5480e61092644a2ee0ba6ffbe87 · values {"bench":null,"excess":null,"gross":0.05755396,"net":0.05655396}
#2117 · EntryOct 17, 2026, 19:28 UTC
Benchmark the S&P 500 (SPY) at $762.60, the close of Sep 17, 2026.
3d726f569d62d5641c6a026a4efd4b8d5213176fea8c9032300d177c43d09d1d ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-17 · ✓ sealed prices match their commitment Sealed: 4c7ecdb72b4d77977d2705eae760bc3d3612b425f807c8ada03d482505d26057 · salt c030ff41336282cb8f07a0c041baa1c6 · values {"bpx":762.6}
#2118 · ResultOct 17, 2026, 19:28 UTC
1 day: price +2.5%, after costs +2.4%; benchmark −0.1%, so +2.5% against it
ce0d184a17c2f134e2d92a75393643cb6e93ddf206d8d01af61ea355a4bcfc40 ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-17 · ✓ sealed prices match their commitment Sealed: b07a1f68b093b8fd536b804593c9d596cb804e6770247c075f4ed081f958071c · salt b4c3e634a347cac6617ee718873f0327 · values {"bench":-0.00119329,"excess":0.02537314,"gross":0.02517986,"net":0.02417986}
#2119 · ResultOct 17, 2026, 19:28 UTC
1 week: price +5.8%, after costs +5.7%; benchmark +0.6%, so +5.1% against it
291ce14e3ec2c56361ca13a141f51d6ee42149271dad2bef73785fcda347dc2e ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-17 · ✓ sealed prices match their commitment Sealed: 78e8bc7b1ea6d9580789e64774c8a8d4ef6d1ed98fa1bdaa4053c5f88c6363aa · salt 44316e88ba06edcc28c379b86f92aab2 · values {"bench":0.00600577,"excess":0.05054819,"gross":0.05755396,"net":0.05655396}
#4183 · ResultOct 20, 2026, 03:07 UTC
1 month: price +37.9%, after costs +37.8%; benchmark +0.5%, so +37.3% against it
fac2f0d87da1d92a3eb01ffaea7faffee457fd93248db2bccff0317f1089d1a5 ✓ matches its hash · ✓ follows the entry before it · ✓ in the checkpoint for 2026-10-20 · ✓ sealed prices match their commitment Sealed: df371514cc13dfa21e992f21cf7ff33f0c3da95f7ee496937bf4f6170762c88d · salt 27397c00a769875f04f75b141eb36f91 · values {"bench":0.00508786,"excess":0.37340855,"gross":0.3794964,"net":0.3784964}

Checkpoints: Oct 17, 2026, digest 329d585d25f590391040f989e1301c83b47a69bc992610579610d4d9ff0f8bf4; Oct 20, 2026, digest 517b4ff5cd0f59df27fd707a60e07ef75746bfb7f778dec74d1d550b21e77f9c.

What this proves

That each entry matches its hash and follows the entry logged right before it, and, once its day is over, that it's part of that day's checkpoint, whose digest fixes everything logged up to then. It doesn't prove on its own that the whole log was never rewritten: only a copy of a checkpoint kept outside this site can. No copy is kept outside this site yet, so these checks show the log is consistent, not that it was never rewritten.

Check it yourself

Download these entries with their proofs: /s/81.json. The audit log page has a short script that checks every hash, every link and every checkpoint, and explains each step.

Source: the SEC filing. Past results don't predict future ones, and nothing here is investment advice.