We would rather over-explain the maths than let a number look more precise than it is. The heuristic is deliberately simple and fully disclosed:
- It starts from a conservative illustrative envelope, not from a rate card. Singapore Stock Loans does not publish a headline LTV, so the tool uses a broad educational band and only ever narrows within it. The starting envelope is intentionally cautious.
- It adjusts by the site's own stated drivers. Liquidity and free float, volatility, market capitalisation implied by position size and sector, concentration, sector character, and recourse are exactly the factors described in how LTV is set on an SGX counter and on the sectors page.
- The drivers pull the same way they do in practice. Thinner liquidity, higher volatility, a larger and more concentrated block, and lighter recourse all pull toward the lower end and widen the buffer; deep liquidity, low volatility, a diversified register, and full recourse allow the higher end.
- The output is always a range, never a single figure presented as a quote, and it always carries the illustrative caveat. Tenor is shown as an illustrative band consistent with a defined fixed term and renewal options.
- Nothing is collected. The calculation runs in your browser with a small inline script; no inputs are transmitted, logged, or stored, and there are no network calls.
The tool cannot see your actual counter, its live free float, its traded value, or the day's volatility — all of which a principal reads before issuing a genuine indicative LTV. Treat the result as a way to build intuition about the drivers, and nothing more.