Should California Issuers Keep Bond Proceeds in CalTRUST?

CalTRUST is a California public-agency pool with three funds, and the question for bond proceeds is whether a pool deposit or a competitively bid agreement serves a given fund better.

The answer depends on the issue's documents, its draw schedule and the gap between the pool's published yield and bid rates, with bond counsel and tax counsel making the legal and tax determinations.

What is CalTRUST, and who can invest?

CalTRUST's site titles it "A Public Agency," and its board says it works with its investment manager, State Street Investment Management, to keep its investment policy in full compliance with California Government Code §§53601 and 53605.

Section 53601 lists what a city, district or other local agency that does not pool money with separately governed agencies may buy with sinking fund or treasury money not needed immediately, under a five-year maturity ceiling unless the legislative body grants express authority at least three months ahead, while §53635 governs agencies that do pool (see California permitted investments).

The list includes United States Treasury notes, bonds and bills under §53601(b) and SEC-registered money market funds meeting the section's criteria, with mutual funds and money market funds capped at 20% of the agency's investable money.

For pooled vehicles, §53601(p) covers shares of a joint powers authority organized under §6509.7 that invests in §53601 securities where the JPA has retained an investment adviser meeting statutory criteria; CalTRUST's documents cite §§53601 and 53635, and whether it sits inside §53601(p) is a determination for bond counsel.

Government Code §53601(m) says money held by a trustee or fiscal agent and pledged to bonds, lease or installment-sale obligations, or certificates of participation may be invested under the statute governing the issue and, where it is silent or to the extent consistent, under the ordinance, resolution, indenture or agreement providing for the issue.

It covers trustee-held pledged funds, not every treasurer-held dollar, and does not name guaranteed investment contracts.

Government Code §5922(d) is parallel: proceeds of bonds and moneys pledged to secure payment of them "may be invested in securities or obligations described in the ordinance, resolution, indenture, agreement, or other instrument providing for the issuance of the bonds or the contract."

California's §16429.1(d) lets an agency deposit bond, note or COP proceeds in the Local Agency Investment Fund (LAIF) pending expenditure with its governing body's approval, and §16429.1(f) leaves how long they stay to the trustee or fiscal agent alone.

In the Short-Term and Medium-Term accounts, all participants' funds are pooled, and participants receive units in the trust and designated shares in the account they invest in.

GFOA's caveat on local government investment pools in general is that they are not registered with the SEC, that investments in them are not insured or guaranteed and that substantial losses have occurred, the background the local government investment pools guide works through.

How is CalTRUST's yield set, and where has it moved?

CalTRUST's yield is a portfolio yield, published rather than quoted: its Our Funds page carries the Liquidity Fund's 7-day average and monthly distribution yield and 30-day SEC yields for each fund.

The ratings trace to an S&P letter dated September 19, 2025, and the Short-Term Fund's benchmarks include LAIF, the state pool.

Duration is what separates the three funds: a 60-day maximum in the Liquidity Fund against the Short-Term Fund's 0-to-2-year target and the Medium-Term Fund's 1-to-3-year target.

This page quotes no number: pool yields change daily and the current figures live on CalTRUST's Our Funds page, with Treasury yields, SOFR and SLGS on the site's today's reinvestment rates page.

What happens to arbitrage and rebate when proceeds sit in a pool?

A pool deposit does not move an issue's federal tax duties: the same two sets of rules apply to the proceeds wherever they sit.

IRS Publication 5271 states that an issue is tested under both the yield restriction rules of section 148(a) and the rebate rules of section 148(f), and failing either makes the bonds arbitrage bonds.

The reach is the issue's: gross proceeds means all proceeds plus all replacement proceeds, and proceeds include sale, investment and transferred proceeds.

For most investments, an investment's yield is "materially higher" than the bond yield when it exceeds it by more than one-eighth of 1 percentage point, under Treas. Reg. §1.148-2(d)(2)(i).

Publication 5271 adds that even when yield restriction allows investing above the bond yield, rebate may still require paying those earnings to the U.S. Treasury.

Which temporary period or spending exception an issue can use is its own question in the arbitrage rebate guides.

This page does not cover whether CalTRUST offers arbitrage or rebate support for bond proceeds, a question for CalTRUST's own documents, and the records an issue needs for arbitrage and rebate are a question for its tax counsel.

How does same-day access compare with a draw-matched agreement?

CalTRUST's Liquidity Fund offers same-day liquidity with a 60-day maximum duration and the Short-Term and Medium-Term funds offer next-day access, while a competitively bid agreement writes its withdrawal provisions into the contract instead.

Pool access is the fund's dealing terms: cash comes back same-day or next-day, so the project's invoice timing, not a contract, sets when money leaves.

On the bid side, the schedule sits inside the contract: the MSRB glossary's general definition of a guaranteed investment contract guarantees a fixed rate of return and a fixed maturity, and the arbitrage definition in 26 CFR 1.148-1(b) counts any nonpurpose investment with specifically negotiated withdrawal or reinvestment provisions and a specifically negotiated interest rate.

The bidding rules require the match: Treas. Reg. §1.148-5(d)(6)(iii)(A)(5) says a GIC solicitation's terms must take into account the issuer's reasonably expected deposit and drawdown schedule.

The trade is flexibility against certainty: same-day access preserves room for a schedule still moving, and a draw-matched agreement sets its withdrawal provisions and its rate in the contract, which the GIC withdrawal provisions guide details.

When does a GIC, flex repo or Treasury portfolio fit instead?

The alternatives come into play when a fund's size and schedule are firm enough to state in bid specifications.

The routing is the same as above: §53601(m) sends trustee-held pledged funds to the statute governing the issue or the indenture, and §5922(d) lets the bond documents describe the investments, so the indenture's permitted investments, the MSRB glossary's term for what a bond contract allows, define what an issue may invest in, with the fit of any particular product a determination for bond counsel.

The SEC has described municipal reinvestment products as instruments tailored to a municipality's specific collateral and spend-down needs, such as GICs, repos and forward purchase agreements, with competitive bidding run by bidding agents the most common way to establish fair market value.

Fair market value is what that process addresses, because an investment not traded on an established securities market is rebuttably presumed not to be bought or sold at fair market value.

Treas. Reg. §1.148-5(d)(6)(iii) supplies the process for GICs and yield-restricted defeasance escrow investments: a bona fide solicitation, at least three reasonably competitive providers solicited, at least three bids from providers with no material financial interest in the issue, at least one of them from a reasonably competitive provider, a winning GIC bid that is the highest-yielding bona fide bid net of broker's fees, and a provider certification and records, all in the fair-market-value safe harbor guide.

A full-flex repurchase agreement is a repo: a sale of securities with an agreement to repurchase them at a prearranged price, economically a collateralized loan, and whether a particular repo falls within the GIC definition in Treas. Reg. §1.148-1(b), with its specifically negotiated withdrawal and rate terms, is a determination for bond counsel.

A structured Treasury portfolio replaces the contract with owned securities, and mGIC's version pairs Treasuries matched to anticipated cash needs with a money-market fund allocation for faster-than-expected spend-down.

The general trade is the LGIP vs GIC comparison's question, with product detail on the Treasury portfolio and flex repo pages.

Can an issuer use both: the pool for near-term draws and a bid for the rest?

The two routes are not exclusive: a fund can hold its still-estimate draws in a same-day pool position while the balance is bid once the schedule firms up.

In CalTRUST terms, near-window draws stay in the same-day Liquidity Fund while the longer tail is bid into a contract or portfolio whose terms take into account the remaining schedule.

Whether the issue's documents admit both is read from the indenture's permitted-investments list by bond counsel.

For a fund already in the pool, the test is the same: put the published yield next to what providers bid on the fund's own schedule.

mGIC is an independent, SEC-registered municipal advisor that sells none of the products it evaluates, and it can compare your pool yield with real bids or open the conversation with no obligation, its fee paid by the winning provider rather than the issuer.

Its Bidding Agent work covers bid specifications, soliciting qualified providers, managing questions and comparing bids on rate and non-rate terms, with Bidding Agent and provider certifications and a compliance file at the end.

Final decisions on how a fund is invested rest with the issuer, and the legal and tax conclusions belong to bond counsel and tax counsel.

Last updated 2026-10-06.

This page is general educational information about municipal finance and federal and state rules as of the date shown. It is not legal, tax or investment advice, and it is not a recommendation about any particular investment. Product availability, legality and suitability depend on the issuer, jurisdiction, governing documents and transaction-specific facts. Final legal and tax determinations remain with the issuer's bond counsel, tax counsel and other advisors.