Spring week applications open earlier than most candidates realise. This is the complete calendar for the 2026-2027 cycle with documented deadlines, preparation windows, and the ECS framework timeline.
The Calendar That Determines Everything
Spring week applications for the 2026-2027 cycle open between September and January, but most close before Christmas. A candidate who starts preparing in January is already late for the firms that matter most. This calendar maps every major spring week and insight programme deadline in London, with the ECS preparation timeline overlaid.
ECS's documented spring-programme outcomes include Karam Kahlon's Blackstone 2026 Spring Insight Programme place, two Morgan Stanley Spring Insight places for Aden Laszlo (University of Aberdeen) and a Citi Insights Programme place for a University of Glasgow student. Dates below are indicative, drawn from previous cycles; confirm each firm's dates on its careers site.
The timeline
June to August (before first year of university)
This is the ideal preparation window. Most candidates do not start here because they do not know the spring week pipeline exists. Families who engage ECS in this window have the longest runway.
What to do:
September (applications open)
The first wave of spring week applications opens in September. Goldman Sachs, Morgan Stanley, JPMorgan, Barclays, and Citi typically open their spring week applications within the first three weeks of September.
What to do:
October to November (HireVue and first-round interviews)
Firms begin processing applications in October. HireVue invitations typically arrive two to four weeks after application submission. First-round telephone or video interviews follow for candidates who clear the HireVue.
What to do:
November to December (assessment centres)
Spring week assessment centres at Goldman Sachs, Morgan Stanley, and other bulge bracket firms typically run in November and December. They are often the final selection stage.
What to do:
January to February (second-wave applications)
Some firms keep spring week applications open into January or open a second wave. Check each firm's dates.
What to do:
March to April (spring weeks take place)
Spring weeks themselves run during the Easter vacation or spring term break, typically one week in duration.
What to do:
May to June (summer internship offers)
Firms typically extend summer internship offers to spring week attendees within four to six weeks of the spring week ending. Some firms make offers on the final day of the spring week.
What to do:
The ECS preparation timeline overlaid
| Window | ECS framework | Purpose | |---|---|---| | June to August | Commercial Fluency + Diagnostic | Foundation building, firm research, scheme selection | | September | STAR-3 | Written applications | | October to November | PEAL-3 | HireVue and first-round interview preparation | | November to December | VTMR + BDC + PEAL-X | Assessment centre preparation | | March to April | Pre-spring-week briefing | Conversion strategy for the week itself | | May to June | Offer and acceptance planning | Acceptance decisions and timing |
The key insight
In ECS's experience, candidates who start preparing before September are in a stronger position when the window opens. The application window is short (September to January). The preparation window is long (June to January). Candidates who compress all their preparation into the application window tend to produce weaker applications than those who build their commercial awareness, competency answers, and firm-specific knowledge over the summer.
This is why ECS recommends that families with children entering their first year of university engage for a diagnostic call in June or July, not September.
How to start
Apply at https://www.accessecs.com/start. The diagnostic is a private forty-five-minute conversation. A parent must be present when the candidate is under twenty-two.
Frequently asked
When should my child start preparing for spring week?
June or July before the first year of university is ideal. September (when applications open) is the latest start that still allows full preparation. January is too late for the firms that matter most.
Which spring weeks are the most competitive?
Banks rarely publish programme-level figures, so any ranking is informal. Goldman Sachs, Morgan Stanley, J.P. Morgan and Blackstone programmes are widely seen as among the most competitive. ECS has documented spring-programme outcomes at Goldman Sachs, Morgan Stanley and Blackstone.
Can a second-year student apply for spring week?
Most spring week programmes are designed for first-year students. Some firms accept second-year applicants, but the primary pipeline is first-year. If your child is in their second year, the summer internship application (opening September of second year) is the primary target.
How do I apply to ECS?
Apply at https://www.accessecs.com/start. ECS keeps its private-client capacity deliberately limited. A parent must be present on the diagnostic call.
Apply the Frameworks With Guidance
Book a diagnostic call with Hassan.
The diagnostic is a structured, no-obligation call to assess your specific position, identify the gaps in your current approach, and determine whether an ECS Private Careers Advisory engagement is the right investment.
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