Expert Witness Services
Trader Language & Industry Standards
Navesink International provides expert witness analysis of trading communications, focusing on how language, conventions, and professional context determine meaning in financial markets disputes.Submit Case Details for Expert Review!
Senior practitioner-led analysis
Derivatives & structured products expertise
Designed for cross-examination
Award-winning expert witness specialists
ABOUT NAVESINK INTERNATIONAL
About the Firm
Navesink International is the premier expert witness firm for financial markets. We help the most prominent law firms win complex cases by providing expert witnesses with the highest quality and the strongest technical knowledge.
Our experts are all industry veterans who can cover the most complex topics and cases in the securities industry. All our experts are selected based on peer recommendations and vetted before representing Navesink International.
We take pride in representing the highest quality expert witnesses with the strongest technical knowledge, and we do not employ consultants or junior expert witnesses.
OUR SERVICES
Service Overview: Trader Language and Industry Standards
Trading communications often rely on linguo, conventions, and implied meanings. Recorded calls, chats, and emails must be interpreted within the context of trading floor practices, market conventions, and the norms of the specific product and venue.
The analysis addresses what specific terms and phrases meant in context, whether parties shared a mutual understanding, and which practices are standard versus unusual. It also considers the responsibilities of participants to clarify, confirm, and escalate when ambiguity or risk is apparent.
These matters frequently arise where intent, agreement formation, or the meaning of instructions is disputed.
Example from Expert Report
“Their communications on the WhatsApp chat and subsequent confirming emails were by established industry standards and practices binding agreements for the purchase and sale of the warrants.”
Expert report
FINRA Arbitration – March 2023
What the Analysis Covers?
Each engagement evaluates the communications record against the established conventions of the relevant market, product, and venue, for use in litigation and negotiation.
Meaning in context
What specific terms, abbreviations, and shorthand phrases meant in the context of the applicable trading environment, distinguishing professional convention from general usage.
Mutual understanding
Whether the parties shared a common understanding at the time of communication, and whether that understanding would have been apparent to an experienced participant in the same market.
Standard vs. unusual conduct
Which practices reflected standard market conduct and which departed from it, including the presence or absence of conditions, escalation obligations, and confirmation conventions.
Duty to clarify and escalate
The professional responsibilities of each participant when ambiguity or apparent risk was present, including when a trader was obligated to seek confirmation or flag an issue upward.
Disputes Where Communication Is the Contract
Common Scenarios
- Warrant, option, or OTC derivative trades confirmed by chat or phone and later repudiated
- Disputes over whether a communication constituted an offer, acceptance, or merely a negotiation
- Cases turning on whether a condition to trade was explicitly stated or implied
- Questions about whether conduct after the communication affirmed or contradicted an alleged agreement
- Disputes over the meaning of Bloomberg chat, WhatsApp, email, or voice-recorded order language
- Cases involving alleged unauthorized trades and the standards governing trader authority
- Option exercise disputes involving the prerequisites, process, and documentation required
- Disputes around which conditions, obligations, or product definition are implicit
Relevant Markets and Instruments
- Equity derivatives: options, warrants, structured notes, leveraged products
- Over-the-counter swaps and forwards (equity-linked, index, FX)
- Listed futures and options: pit and electronic execution standards
- Structured products and embedded options
- Hedge fund subscription, redemption, and side-pocket conventions
CASE STUDIES
Representative Matters
Cases Addressing Communication and Convention
The following matters illustrate the analytical approach applied across different instruments and dispute types.
Eletson v. Levona
Matter type: Expert witness engagement, JAMS arbitration.
Facts:
Eletson, a tanker venture backed by Blackstone, transferred shipping vessels to Levona, which offered a $10 million emergency loan and a purchase option on its vessels in a Binding Offer Letter. When the relationship collapsed, Eletson claimed it had exercised the option to repurchase the ships and filed a JAMS arbitration. Levona’s expert contended that the BOL was actually a forward sale, which guaranteed Eletson the ownership of the vessels.
Instruments & Strategy:
Over-the-counter call options, option exercise mechanics.
Core Questions:
Our Work:
- Explanation of the BOL: Demonstrated through contract language, structure, prerequisite design, and world-outcome analysis that the BOL was an option, not a forward sale.
- World-outcome analysis: Constructed a matrix of contractual outcomes across different vessel values and exercise/non-exercise scenarios, demonstrating that in every case Levona had purchased the vessels, and that exercise was a separate, independent event requiring affirmative action by Eletson.
- Exercise prerequisites and process: Explained the requirements and steps of the exercise process.
- Failure to exercise: Reviewed the available record and found no written exercise notice, no board resolution explicitly exercising the option, no agreed vessel valuation, and no cash payment. Highlighted that the lack of documentary evidence for each of the steps, which would have been easy to produce, was a demonstration of the absence of an exercise. Noted that the Fundamental Action Letter - requiring Eletson to cooperate with Levona on governance - would have been pointless if the option had already been exercised or if the BOL were a forward sale.
- Rebuttal of opposing expert: Addressed point-by-point the argument of the Eletson expert’s report, his vessel valuation assumptions, his "forward contract" characterization, his treatment of the nominal $1 price as evidence of option worthlessness, and his failure to address whether the exercise prerequisites and procedural steps had ever been satisfied, demonstrating the weakness of the forward sale argument.
- Expert report and hearing support: Delivered a written report and testified at JAMS.
Outcome:
The arbitrator initially ruled for Eletson in 2023. Documents later produced in bankruptcy proceedings revealed that Eletson witnesses had committed perjury and withheld internal emails proving the option had never been exercised. In January 2026, a federal district court vacated the award for fraud, fully vindicating Navesink’s conclusion that no valid exercise had occurred.Related article: When option exercises meet litigation narratives. Article
Testimonial: “Wow! You were absolutely fantastic. It is obvious that you are no stranger to this material, and you absolutely nailed your testimony. We very much so appreciate your flexibility, willingness to work within the last second changes of which there were so many, and most importantly, your fantastic report and testimony. Jennifer—you missed an absolutely dominating performance by Gontran. It was an honor to work with you all, and we will certainly keep you in mind should we have a similar need in the future. While I do not wish litigation on our clients, you can rest assured we will return to you should we need expert services in this realm. Jennifer, I will keep Bates group in mind for referrals should we need expert services outside of options—For options, I only want Gontran!”
Trade Dispute- Unregistered Warrants
Matter type: Expert witness engagement, FINRA arbitration.
Facts:
A hedge fund negotiated the purchase of unregistered equity warrants from a broker-dealer, agreeing on price and quantity via WhatsApp and email. The seller confirmed with “Done”, then exchanged settlement documents. The fund’s trader hedged by selling the underlying stock short. As the stock rallied, the broker-dealer did not execute the registration/settlement documents, then walked away from the trade altogether, arguing that those documents constituted an implicit condition to the agreement. The undelivered warrants left the short position uncovered, generating significant losses on the hedge. The fund commenced a FINRA arbitration to recover those losses.
Instruments & Issues:
Equity warrants, OTC securities transactions, trade execution customs and standards, short selling, hedging, damages.
Core Questions:
Binding nature of chat and email trade confirmations, industry standards for OTC trade execution, whether documentation negates trader commitments, damages assessment.
Our Work:
- Industry standards and trader customs:Opined on the professional norms governing OTC trades. Explained that in the securities industry, a transaction is binding once both sides have agreed on the key economic terms - product, quantity, and price - regardless of whether a formal written confirmation has been signed. Drew on 25 years of trading experience at major institutions to illustrate how traders routinely execute and confirm significant transactions through brief chat-based or verbal communication.
- Communications review: Reviewed hundreds of pages of email correspondence, WhatsApp transcripts, and warrant exercise notices. Built a detailed chronology mapping each confirmation, amendment, and reconfirmation by the broker-dealer’s trader, demonstrating that the trades had been agreed multiple times without any condition placed on a signed written agreement.
- Binding nature of chat and email confirmations: Demonstrated that the broker-dealer’s trader confirmed the first warrant trade By writing “done” on WhatsApp and followed up with a formal confirming email the same day. Subsequent reconfirmations over the following week further reinforced the binding nature of both transactions. Highlighted that none of these communications contained any condition on the execution of a written purchase agreement, which under industry practice would have been required to limit the trader’s commitment.
- Price chart and motive analysis: Correlated the broker-dealer’s communications and ultimate repudiation with the underlying stock price chart. Showed that the seller confirmed and re-confirmed the trades while the stock traded in a lower range, went silent as the stock rallied, and walked away only after the stock had appreciated materially. Estimated the opportunity gain from selling the warrants elsewhere, consistent with a financially motivated repudiation.
- Damages framework: Assessed the losses suffered by the fund on the short stock position and borrow. Opined that those losses flowed directly from the broker-dealer’s refusal to honor its commitments.
Outcome:
Navesink International provided two expert documents: an initial opinion to help a settlement, and a report for the FINRA arbitration proceedings. The documents opined that the warrant trades were fully executed under trader industry standards, and that the respondents’ arguments were inconsistent with professional practice and financially motivated.
WHY CHOOSE US
Why Choose Navesink International?
Senior practitioner-led analysis
Every case is handled by experienced senior professionals, not delegated to junior staff.
Deep technical expertise
Deep experience across derivatives, structured products, volatility, valuation, margin, and assignment mechanics.
Litigation-ready work product
Work product designed to hold up under cross-examination with clear, defensible methodologies.
Attorney-focused collaboration
Attorney-focused communication and collaboration throughout the engagement.