Dissemination of Transaction Information
FINRA Rule 6750 governs what happens to a trade report once TRACE receives it: whether, when, and in how much detail FINRA makes that information public.
This is the rule that converts private trade reports into the market transparency TRACE was built to deliver, and its scope has expanded substantially since TRACE's earliest days, when the predecessor rule excluded entire categories of transactions that today are disseminated as a matter of course.
The predecessor provision, NASD Rule 6250, took a considerably narrower view of dissemination than the current rule does. Under that earlier version, NASD would not disseminate information on any transaction effected pursuant to Securities Act Rule 144A at all, a blanket exclusion that has since been reversed entirely.
Today's Rule 6750(a) explicitly includes Rule 144A transactions within the general rule of immediate dissemination upon receipt, a genuine substantive expansion of TRACE's transparency reach rather than a mere renumbering exercise when the 2008 Consolidated FINRA Rulebook initiative carried the provision forward under its current designation.
The Default Rule and Its Exceptions
Paragraph (a) establishes the baseline: FINRA disseminates information on all transactions in TRACE-Eligible Securities, including Rule 144A transactions, immediately upon receipt of the transaction report, except as specifically carved out in paragraphs (b) through (d). This default toward immediate, individual-transaction dissemination is the norm rather than the exception across the fixed income market TRACE covers, and the carve-outs that follow should be understood as narrow departures from that norm rather than the rule's true center of gravity.
Periodic Dissemination for Certain CMOs
Paragraph (b) addresses collateralized mortgage obligations specifically. FINRA disseminates aggregated information, rather than individual transaction reports, on CMO transactions, including those effected under Rule 144A, where the transaction value is $1 million or more calculated on original principal balance, and where at least five such $1 million-plus transactions in that security have occurred within the relevant period, reported by at least two different Market Participant Identifiers.
This aggregated data is published on a weekly and monthly basis rather than disseminated transaction by transaction, reflecting FINRA's judgment that individual CMO transaction reporting at this scale would not provide the same pricing transparency value that individual dissemination offers for more actively traded instruments.
End-of-Day Dissemination for Treasury Securities
Paragraph (c) reflects one of the more significant recent expansions of TRACE transparency. FINRA amended the rule under SR-FINRA-2023-015, approved by the SEC on February 7, 2024, to disseminate individual transactions in On-the-Run Nominal Coupon Treasury securities on an end-of-day basis, with the underlying reforms taking effect March 25, 2024 for the end-of-day file itself and April 1, 2024 for the associated historic data set. "On-the-Run Nominal Coupon" is now separately defined in Rule 6710(ll) as the most recently auctioned Treasury note or bond paying a fixed rate nominal coupon, running from just after the close of TRACE on its auction day through the close of TRACE on the auction day of the next issue of the same maturity, and expressly excludes Treasury bills, STRIPS, Treasury Inflation-Protected Securities, and floating rate notes.
This end-of-day file includes price, size, counterparty type, whether the trade was executed on an ATS, and applicable modifiers, but deliberately omits the MPID or other identifying information about the parties. Dissemination is subject to maturity-specific caps: transactions in two-year, three-year, and five-year notes are capped at $250 million, while transactions in seven-year and ten-year notes are capped at $150 million, with trade sizes above these thresholds disseminated at the cap rather than at their true size.
A separate Historic TRACE Data Set for Treasuries makes uncapped transaction information available on a six-month delayed basis, giving researchers and other data users eventual access to true trade sizes that real-time dissemination deliberately obscures.
Non-Disseminated Categories Under Paragraph (d)
Paragraph (d) lists the categories FINRA does not disseminate at all, regardless of transaction value or frequency. These include transactions identified with the non-member affiliate-principal transaction indicator under Rule 6730(d)(4)(E); transfers of proprietary securities positions effected in connection with a merger or acquisition rather than in furtherance of a trading or investment strategy, provided the member gives FINRA at least three business days advance written notice explaining the basis for treating the transfer as qualifying; Commercial Mortgage-Backed Securities and Collateralized Debt Obligations; CMOs valued at $1 million or more that do not otherwise qualify for the periodic dissemination treatment under paragraph (b); and U.S. Treasury Securities other than On-the-Run Nominal Coupons, the residual category left non-disseminated following the 2024 expansion described above.
The merger-related exception deserves particular attention given its specific procedural requirement. A member relying on this exception cannot simply classify a transfer as merger-related after the fact; the three-business-day advance written notice requirement means the member must make this determination, and communicate it to FINRA, before the transfer occurs, giving FINRA the opportunity to review the basis for the claimed exception in advance rather than discovering it retroactively through a data anomaly.
Discretionary Aggregated Publication
Supplementary Material .01 permits FINRA, notwithstanding the paragraph (d) exclusions, to publish or distribute aggregated transaction information and statistics on TRACE-Eligible Securities that are otherwise excluded from dissemination, at no charge unless FINRA separately files a rule change imposing a fee. This discretionary authority is split into two parallel tracks: aggregated data covering non-Treasury TRACE-Eligible Securities excluded from dissemination, and a separate track covering excluded Treasury Securities. In both cases, the published aggregated data cannot be broken out by individual security and cannot identify individual market participants or transactions, preserving anonymity even as FINRA gives the market some visibility into otherwise-hidden trading activity.
A narrow technical exception applies to the Treasury aggregation track: aggregated data may include an on-the-run Treasury security that happened to be the only on-the-run security of its maturity during the aggregated period, since aggregating a single security's data does not create the same anonymity concern as it would for smaller subsets of a genuinely multi-security bucket.
The Historical Expansion into Securitized Products
Rule 6750's reach into Securitized Products has grown incrementally over time, and the agency pass-through mortgage-backed security market provides a clear example. FINRA amended Rule 6750(b)(4) effective November 5, 2012, per Regulatory Notice 12-26, to disseminate transactions in agency pass-through MBS traded on a to-be-announced basis immediately upon receipt of the transaction report, rather than treating them as non-disseminated by default.
TBA transactions eligible for good delivery are disseminated subject to a $25 million cap, while TBA transactions in products not traded for good delivery carry a lower $10 million cap, illustrating the same pattern found elsewhere in Rule 6750: broader transparency phased in gradually, with size caps calibrated to the specific market segment's liquidity characteristics rather than a single uniform threshold applied indiscriminately across every instrument type.
A Significant Pending Amendment for 2026
FINRA has a substantial proposed amendment to this rule currently working through the SEC approval process, filed as SR-FINRA-2026-009, and firms should track this development closely rather than treating the current rule text as necessarily final.
The proposal would retitle the existing non-member affiliate-principal transaction indicator under Rule 6730(d)(4)(E) as the broader "Affiliate-Principal Transaction Indicator," expanding a new Rule 6710(ee) definition of "affiliate" to include entities under common control, not merely non-member affiliates as the current rule addresses.
The corresponding amendment to Rule 6750(d)(1) would suppress dissemination for any transaction identified with this broadened indicator, extending the current non-member-affiliate-only suppression to a considerably wider category of related-party trading.
FINRA's own supporting analysis for this proposal is worth understanding, since it explains the underlying transparency rationale. FINRA identified that a meaningful share of transactions in Securitized Products and Treasury Securities occur between affiliated entities, and FINRA has determined that disseminating these particular trades does not provide investors with useful pricing, valuation, or risk evaluation information, and may in fact be distortive to the market's understanding of genuine, arm's-length pricing activity.
The proposal also addresses a specific edge case: where a member executes same-day, same-price transactions in the same security with both a member affiliate and a non-member affiliate, and neither trades with an unaffiliated counterparty under the same terms, the Affiliate-Principal Transaction indicator need only be appended to one of the two trades, with both members instead receiving a mismatch notification on their TRACE Match Status Reports for the other.
How Dissemination Interacts With Trade-Side Display
Rule 6750's dissemination framework operates alongside a separate display convention worth understanding together with the exclusions discussed above. For transactions between two FINRA members, TRACE generally disseminates only the sell side of the trade, rather than two duplicative reports representing both sides of the same transaction. For transactions between a FINRA member and a non-member, TRACE disseminates the transaction regardless of whether the member was the buyer or the seller, since there is no equivalent second, member-side report to avoid duplicating in that scenario.
This convention became especially relevant once FINRA expanded the Rule 6732 ATS exemption in 2022 to cover transactions involving only one FINRA member. Because an exempted transaction between a member and a non-member no longer generates a report from the ATS itself, and because the member subscriber's own report is what gets disseminated, the sell-side-only convention that applies to purely inter-member trades does not apply in the same way; the market instead sees whichever side of the transaction the reporting member actually represents.
Firms analyzing disseminated TRACE data for a security with meaningful non-member trading activity should keep this distinction in mind when interpreting apparent trading volume or direction from the public data feed, since the display convention itself shifts depending on the counterparty composition of the underlying trades.
Why the Size Caps Exist at All
The transaction size caps found throughout Rule 6750, whether the $5 million and $1 million corporate bond caps referenced elsewhere in the TRACE rules, the maturity-specific Treasury caps introduced in 2024, or the TBA-specific caps from 2012, all serve a common purpose: balancing genuine price transparency against the risk that revealing the true size of very large trades could itself move the market or reveal a specific counterparty's trading strategy before that counterparty has finished executing a large position.
A dealer working a $400 million Treasury note trade in pieces, for example, has a legitimate interest in not having each individual piece's true size broadcast to the market in real time, since doing so could allow other participants to trade ahead of the dealer's remaining unexecuted size.
FINRA's own economic analysis supporting the 2024 Treasury dissemination expansion illustrates this balancing act directly, noting the percentage of notional volume that would actually be capped upon dissemination at each maturity tier, ranging from roughly 6 percent for ten-year notes up to nearly 15 percent for two-year and three-year notes, figures FINRA derived from careful study of actual historical Treasury trading patterns rather than an assumed or arbitrary distribution.
Relevance Across FINRA's Exam Programs
The SIE, Series 63, and Series 65 do not test Rule 6750's dissemination mechanics, since these exams do not reach into facility-specific fixed income transparency infrastructure at this level of technical detail. A Series 7 candidate benefits mostly from understanding the general principle that not every reported bond trade becomes immediately and fully visible to the market, a useful corrective to an assumption some candidates carry over from equities, where dissemination is close to universal and immediate.
A Series 24 candidate supervising a fixed income business needs a working grasp of which transaction categories in the firm's own trading activity fall outside ordinary dissemination, since a principal reviewing the firm's TRACE reporting accuracy should understand that a transaction correctly reported but incorrectly marked with, or without, an applicable non-dissemination indicator produces a transparency error distinct from, but just as significant as, a timing violation.
A Series 57 candidate working a desk that regularly executes merger-related proprietary transfers, CMO transactions, or Treasury trades needs practical fluency in these dissemination categories specifically, since correctly identifying which category a given transaction falls into determines both the applicable indicator and, in the merger-transfer case, an advance notice obligation that must be satisfied before the transaction occurs rather than after.
Practical Guidance for Firms
Firms relying on the merger-related proprietary transfer exception under paragraph (d)(2) should build the three-business-day advance notice requirement directly into their deal-planning timeline for any qualifying corporate transaction, since this is not a box that can be checked retroactively once the transfer has already occurred.
Legal and compliance teams supporting an M&A transaction involving a proprietary debt securities position transfer should treat this notice obligation as a discrete workstream item, assigned to a specific individual with a specific deadline, rather than an afterthought addressed once the underlying deal itself has closed, particularly given how easily a fast-moving transaction timeline can crowd out a compliance step that has no natural place on a typical deal checklist.
Firms should also monitor the pending SR-FINRA-2026-009 proposal closely if their trading activity involves any meaningful volume between affiliated entities, since the expanded Affiliate-Principal Transaction indicator, if adopted, will require updating both the firm's own trade reporting logic and its understanding of which affiliate relationships now qualify for non-dissemination treatment beyond the current non-member-affiliate-only scope.
Firms with both member and non-member affiliates trading the same securities should specifically prepare for the edge-case scenario FINRA's proposal addresses, ensuring their systems correctly apply the single-indicator, mismatch-notification logic rather than either double-suppressing or failing to suppress dissemination where the rule's more nuanced treatment actually applies.
Firms trading large blocks of On-the-Run Nominal Coupon Treasuries should build the maturity-specific dissemination caps directly into their own internal risk and execution analytics, since understanding which portion of a large trade will actually be visible to the market at true size, versus capped and disseminated only as a threshold figure, matters for both execution strategy and post-trade analysis of market impact. A trading desk that misunderstands where its own activity falls relative to these caps risks either overestimating its own information leakage risk on trades that would in fact be capped, or underestimating that risk on trades that fall below the relevant threshold and will therefore be disseminated at full size.
Finally, firms relying on the discretionary aggregated publication framework under Supplementary Material .01 should recognize that this is FINRA's own publication choice rather than a right the firm can invoke or rely upon for any particular security.
A firm should not build internal compliance or disclosure processes around an assumption that FINRA will necessarily publish aggregated data for a specific excluded security or Treasury maturity bucket, since the rule text preserves this as discretionary authority FINRA exercises at its own initiative rather than a guaranteed transparency mechanism triggered automatically by any particular set of facts.
