Expand model tag support: add GLM-5.1, simplify Anthropic IDs, scan tags anywhere in message

- Flink update_bars debouncing
- update_bars subscription idempotency bugfix
- Price decimal correction bugfix of previous commit
- Add GLM-5.1 model tag alongside renamed GLM-5
- Use short Anthropic model IDs (sonnet/haiku/opus) instead of full version strings
- Allow @tags anywhere in message content, not just at start
- Return hasOtherContent flag instead of trimmed rest string
- Only trigger greeting stream when tag has no other content
- Update workspace knowledge base references to platform/workspace and platform/shapes
- Hierarchical knowledge base catalog
- 151 Trading Strategies knowledge base articles
- Shapes knowledge base article
- MutateShapes tool instead of workspace patch
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description: "A secured short-term lending strategy where a pawnbroker extends a cash loan against physical collateral, retaining the right to sell the collateral if the loan is not repaid."
tags: [cash, lending, collateral, alternative]
---
# Pawnbroking
**Section**: 17.5 | **Asset Class**: Cash | **Type**: Collateralized lending
## Overview
Pawnbroking is conceptually similar to repurchase agreements (REPOs) but operates in retail/consumer markets and has ancient historical roots. A pawnbroker extends a secured cash loan with a pre-agreed interest rate and period (which can sometimes be extended). The loan is secured with a collateral item of value; if the loan is not repaid with interest as agreed, the collateral is forfeited by the borrower and the pawnbroker can keep it or sell it.
## Construction / Mechanics
**Loan origination:**
- Borrower presents a physical item of value as collateral (jewelry, electronics, vehicles, rare books, musical instruments, etc.)
- Pawnbroker appraises the item and offers a loan amount at a significant discount to appraised value (e.g., 2560% of estimated resale value)
- Borrower receives cash; pawnbroker retains physical possession of the item
- A loan ticket is issued specifying the principal, interest rate, fees, and redemption deadline
**Redemption or forfeiture:**
- If borrower repays principal plus interest within the agreed period, the item is returned
- If borrower fails to repay, the pawnbroker takes full ownership of the collateral and may sell it to recover the loan amount plus a profit margin
**From an investment perspective:**
- The pawnbroker's strategy profits from: (a) interest income on repaid loans, and (b) resale margin on forfeited collateral
- The deep discount on collateral valuation provides a cushion against mispriced or illiquid items
## Return Profile / Objective
Returns come from two sources: interest income on performing loans (typically high, reflecting the high-risk, unbanked borrower profile) and trading profit on forfeited collateral items sold at or above the appraised value. The high interest rates compensate for the non-recourse nature of many pawn loans (the lender's only recourse is the collateral, not the borrower personally).
## Key Parameters / Signals
- **Loan-to-value (LTV) ratio**: loan amount as a fraction of collateral's estimated resale value; typically 2560%
- **Interest rate / fees**: high relative to bank rates; regulated in many jurisdictions with rate caps
- **Loan term**: typically 14 months; extensions often available
- **Collateral liquidity**: items with active resale markets (gold jewelry, electronics) command better LTV ratios
- **Forfeiture rate**: the fraction of loans that are not redeemed; drives the resale revenue component
## Variations
- **Online pawnbroking**: digital platforms for luxury goods, collectibles, and watches
- **Commodity pawnbroking**: pawnbrokers dealing specifically in precious metals and gems (overlap with commodity trading)
- **Title lending / auto pawn**: loans secured against vehicle titles; borrower retains use of the vehicle while the title is held
- **Jewelry/gold dealers**: effectively pawnbrokers who specialize in precious metals with spot-price-linked valuations
## Notes
Pawnbroking is legal and regulated in most jurisdictions, with interest rates and practices governed by consumer lending laws. The pawnbroker trades physical commodities such as silver and gold as a byproduct of forfeited collateral. The strategy is highly local and operationally intensive. It is conceptually the retail analogue of institutional repo markets — both involve a cash loan secured by an asset with a right to liquidate the asset upon default.