Sell-side equity research analysts cover individual stocks, publish reports with rating recommendations (Buy, Hold, Sell), and host investor calls. Their primary clients are institutional fund managers — both at hedge funds and at long-only mutual funds.
The Chinese wall
The 'Chinese wall' is a regulatory and ethical barrier between research and the rest of the bank, especially IBD. Research is supposed to publish without IBD influence; IBD is supposed to use research only after publication. Pre-2003, this wall was famously porous; analysts at major banks were privately disparaging stocks they were publicly recommending to favour IBD relationships. The 2003 Global Settlement (Spitzer) imposed structural separations and fines totalling $1.4B across ten banks. The wall is now genuinely meaningful, although it leaks at the margins through deal-specific carve-outs (banker-research-investor calls during IPOs, etc).
MiFID II and the unbundling
MiFID II (in effect 2018) was the next regulatory shift. It required European institutional clients to pay separately for research instead of bundling it into trading commissions. The unbundling has compressed research budgets dramatically. Many sell-side research departments have shrunk by 30-50% since 2018; some have been spun out as standalone businesses; some smaller stocks have lost coverage entirely.
What an analyst publishes
Initiating-coverage reports (deep, often 50-100 pages, when picking up a new name), models updated through earnings, quarterly previews and reviews, industry / thematic notes, and event-driven flash notes. Senior analysts also organise investor field trips, host management at conferences, and publish stock-picking lists for their clients. The buy ratings are mostly read; the sell ratings are mostly ignored. The hold ratings are mostly noise.
Research analysts are now compensated mostly out of the trading commission pool and out of investor-vote 'broker reviews' (institutional clients' annual ranking of analysts they value most). Compensation for senior analysts ($500K-2M for managing directors at major firms) is below what comparable seniority earns in IBD or trading. The reason people stay: the work is genuinely intellectually engaging, the lifestyle is better, and the buy-side hedge-fund exit option is real and lucrative.
Exercise
A sell-side equity analyst at Renaissance Capital publishes a Hold rating on Safaricom with a target price of KES 16 — versus a current market price of KES 18. Three weeks later, Renaissance is hired by Safaricom to advise on a USD 600m bond issuance. (1) Is there a structural conflict of interest in this sequence? (2) What are the Chinese-wall mechanisms that should have separated the research call from the new banking mandate? (3) MiFID II would change one part of this story — what does it change, and how would the deal look in a MiFID II jurisdiction? (4) Should the analyst now revise the rating, given the banking relationship?